Being hit by Thor Odinson was an equivalent to becoming the target practice of an entire lightning storm, which was just about enough energy to pulverize anything as frail as beings made of puny flesh and bone. Sierra was in that category. 

With Mjolnir on her, pinning her down and ripping at the fabric of her wedding dress, the second the hammer started buzzing electricity, Sierra was unfortunately hyper-aware that its wielder was getting closer and she would inevitably meet her end by being turned to dust. 

She couldn't do anything about it, try as she might. She could squirm, sure, scream in the confinement of her mind too if she really wished, but the truth was plain as the lost daylight: the pain of having that hammer sink onto her while electricity scratched her skin to gashing wounds was too much to handle whilst attempting to conjure up any spells from the back of her mind. 

Rendered helpless, Sierra closed her eyes and braced for death, with a cry on her lips. 

The hardened sensation of the ground below her disappeared and a flash of light washed over. The cry turned to a yelp and she opened her eyes just as a hand grabbed the back of her neck; she saw the orange portal, the hammer falling after her, Thor trying to come through in time -fury of uncharacteristic auburn blazed his glare-, but also Wong, closing the portal before the God could reach it and Stephen, steadying her by his side and letting go of her neck. 

The whips of lightning stroke either way, just further down the street from them. 

Standing was a challenge of its own as Sierra felt with stings each drop of blood which was staining her white dress; aches spread in a ripple throughout her body from her abdomen and the back of her head. But regardless of holding on for dear life to Stephen's arm, she gestured towards the street. "We need a perimeter set," her jaw was shivering, voice clearly more aware of the near-death experience than even her. "Civilians must be taken out of the way..."

"W has already dialed SHIELD and they have announced emergency protocols, city wide," Danny announced, swooping her from Stephen's side and, without any sort of inquiry, letting his left palm glow bright yellow in the chi gathered in it instantaneously. He sought to look Sierra in the eyes while healing the bulk of her injuries. "Teams are going to be dispatched within ten minutes. Tony and Peter will be holding Thor back."

The sounds of battle had continued without pause down the street behind Danny, thus he took a moment to nod towards Stephen in order to silently remind him of how it would be proper and very much appreciated of him to go help the others in constraining Thor, quite an unexpected drop to the violence. Something was putrid in all this ordeal and just when Danny hoped to even voice this inner feeling, the margins of his sight saw fire above. 

Hugging Sierra to his chest immediately, he shielded her from what seemed to be mere fire at first, but proved instead to burn right through his jacket, through his shirt, even the outer layer of his back's skin. Danny muffled a scream right above Sierra and her heart clenched as the sound echoed in her fragments of his pain. 

Preternatural, this fire was imbued with energy which Danny could compare at that moment with a thousand souls of Shao-Lao combined. Perpetual and growing stronger, he gritted his teeth and concentrated all his chi to turning his body in a conduit, rather than a pillar; why bother standing against its rawness when he could fight power like water dealt with stone? 

"Let go," he whimpered down to Sierra, bottling up all gasps of pain to unclench the tension in his arms' muscles and allow her to get even slightly away from his figure, now plunged into dangerously augmented chi luminescence. Danny closed his eyes, controlled his breath. Though breathless from shock, Sierra recognized his strategy to handling the attack was to absorb as much of the attacking energy as possible, let it simmer inside of his own chi, before releasing it back. 

One look from her upward, past his head and squinted over the fire, and she was absolutely convinced Daisy's energy would not deplete sooner than her husband would collapse. That sort of realization sealed a series of actions for her before she even had the time to think them through. 

An obscure brightness flashed inside her irises and though Sierra back away from Danny, she was quick to plant her hands into the ground. As soon as that happened, the light in her eyes grew in intensity of pure whiteness and expanded in a swiping flash out of her body, extinguishing all fire and hitting Daisy straight on.

It brought her no harm, apart from the stun of momentary blindness. 

Daisy brought her right hand up to her tightly shut eyes, rubbing them with a snarl trapped and hardened on her features. Lowering her hand and blinking her sight into a blurred focus refusing to center, she saw the hazed vision coming for her a notch too late to do anything but raise her eyebrows: a translucent dragon made from all the fire energy Danny absorbed was punched back towards Daisy and she was knocked out of the sky, falling on the ground with a roar of shockwaves.

Lightning whipped the air and Danny, in return, had little time of reaction to get Sierra behind him. Both of them looked back at the scene with perplexed stupor: Thor's limbs, previously webbed, were being pulled back by Spider-Man, single-handedly, though not without toil. The young man's heels were anchored in the concrete to the point that they made craters, digging ever deeper. Had his bones been any weaker, the God would have had him break his ankles. 

Part of the scene, a little to the side of the road and behind, Wong had been hurt. While the Sorcerer Supreme was aided by Stephen, that left only Iron Man to help Peter, though surely somewhere up, still on the roof of the Sanctum, Illyana was pacing around, cursing the rule in effect that she should not yet involve herself in battles which may reopen Limbo. The demons have been oddly malevolent lately, even for their kind. But that was a problem for later. 

"Go," Sierra nudged Danny when noticing Tony swaying uncontrollably attempting to dodge lightning bolts coming out of the sky and splintering not only the street, but also the windows of buildings and cars around them. "I'll handle Daisy." She turned around without waiting for his acknowledgement or for her own readiness to be steady alone on her feet while her body still felt ghosts of aches from falling off a whole building and being crushed by a magical hammer too. Danny's chi could only heal so much on her within a minute and those methods of healing were meant to take time either way.

"Handle Daisy...," a distorted voice fumed and tumbled from the cloud of dust and thick volcanic smoke rolling and growing in its archaic density from the place in which Daisy had fallen. Sierra's nose stung at the ashen scent, but with but an expression wrinkle on the bridge of her nose, she flared her nostrils and endured, raising instead her hands. Her fingertips held light and in their ascension a straight line of luminescence dragged towards the ground as if threads were dripping from her hand, drawn in air with marvelous thinness. 

"Will you now?" the chamber of echoes mocked, but Sierra paid little attention to it. Not understanding much of what was happening at that moment made it ever the easier to ignore the mean nuances in the diffused voice of someone she considered at least an ally if not really a friend. 

What had happened? She, or frankly said no one at all, had heard anything from Daisy since the Battle of Tuun, after which she had declared her desire to hunt down the remaining members of the Black Order and perhaps find Loki and the Phoenix Force, both which had gone missing.

Sierra pushed her palms onto the light cuts into the air and they swirled in circles by themselves. Their outline burst in bright sparks and turned with the swiftness by which they swished forward. The entire atmosphere rippled behind them into a series of mirrors, cutting the smoke apart and revealing at the very last second before both of them had been devoured by the Mirror Dimension that Daisy had lunged forward. 

In a sloppy jump out of the way, Sierra huffed at the rough landing on the very side of a building now twisting out of shape at the whim of her will. It was a true relief, for once, to let her mind work at the full extent it has been torturing her to expand to for days now. But then again, she knew the Mirror Dimension gave her little relief in the long term. 

Sierra's eyes caught a white glint, dangerous diamond, cold and merciless; her hands grew ever brighter while she stood up, walking back on the building, watching the ground twist and the street bend in an exaggerated curve with Daisy in the middle, as if the traffic lanes wanted to wrap a present of the mutant and tighten even a bow on top of it too. 

Looking around confused was not a state which would last on Daisy though; quickly caught up to what was happening, Sierra was startled by this swiftness of adaptivity. 

"The Mirror Dimension," Daisy identified with a puff, immediately rolling her eyes and straightening up. Sierra glared in much confusion: how did she even know about this place? "Cute."

"I don't know what happened," heaved breath made Sierra pause and rethink before rising her bowed head. "... what you think happened, Daisy," she let the building beneath her move her towards the top, farther and farther away. The warmth of the air was getting suffocating, warmer than it should have been in a dimension so distant from augmented influences brought by anyone but an experimented sorcerer. Even the latter would generally find it difficult to bring a lasting change to this malleable dimension. "But let's talk about this."

"Sure," Daisy tilted her head to the side, her smile widening to a form that Sierra found oddly disturbing. "Let's talk about the Darkhold then." 

"What-?" The question remained a murmur on Sierra's lips as Daisy's chest started burning in the same strangely strong fire, shaped into a raging ball hurled towards her. She thought she heard a bird-like screech before mirrors started breaking apart, shattering and falling down in a deadly cutting rain. 

Light branching out of the sole of Sierra's feet rushed to help the walls of mirrors reform, all the while the building she was walking on morphed away to block the blast. 

The blast burned right through though, with a dubious ease. 

Out of the fire, Daisy's hands appeared first, skin cracked as the coat of log, burning in a campfire. She leaped out, fully fleshed for as short as a blink before bumping into Sierra in fire shape and appearing behind her. 

Torching hands grasped the sides of Sierra's head and the ground opened at the sound of the sorceress' scream. The building collapsed upon itself and she fell right through the gap, out of the grasp of the mutant. Her skin was redder, but not quite burned yet, not unlike the chest of her dress, which she grasped the shredded state of with both hands upon landing on an office table, growing wider and larger now, margins blazed by the grace of her light magic. 

Given how her dress would fall apart altogether at any second if Daisy continued her hostility so blatantly, Sierra straightened up on the table and moved her hands down in a circular spell which would have normally conjured her a set of K'un-Lun robes.

Instead, a chill down her spine formed in response to looking down and seeing the same dress bridal dress infected by moss growth. Just like the dream. 

"Let's talk about the Paradox," Daisy's odd voice menaced a descend from the ceiling, floating through a rain of mirror shards with her hair on fire, her skin cracking and revealing infinite reserves of the same magmatic force coiling inside of her. 

Daisy did not look into Sierra's eyes, but pointedly to her forehead where, unbeknownst to the slightly outraged bride, a speck of bright energy started forming a clear shape of a crown of magic. To such a sight, one which Daisy knew the meaning to, she couldn't help but smile.

"About your destiny to annihilate reality...," she murmured, while the building twisted in a cupola around them, a prison of spiraling materials, bending and warping in nonsensical variations, unnatural to even think of. It felt as if trapped in a kaleidoscope while a child plays with it enthusiastically for the first time. "...everywhere in the Multiverse."

"You're not yourself right now," Sierra blurted out, staring into the flaming gaze of the other. Her own heart was thundering in her ribcage; a familiar tingle of loss of control sparked in her veins and she dreaded how tightly it wrapped around her shortness of breath, her fear and perhaps even her mind already. She wasn't ready for a serious fight involving magic, not so soon. 

"Of course I'm not," Daisy laughed. "You don't know who I am?"

Should I? Sierra asked herself, but a deaf ache propelled her mind onto a whole different scenario, where tornados of fire formed between five pure fire clones of Daisy's and the energy was enough to melt not just the physical, but the non-physical too. 

Blinking herself back to the current reality plane Daisy herself was perceiving, Sierra saw the first clone of fire form and raised her hands in an instant. White bundles of magic got marionetted under her palms towards her fingertips then spreading in well over a dozen threads of light towards everything around them, grasping the mirrors of the dimension and collapsing it down on Daisy. 

Another blink and Sierra gasped, seeing the formed clone of fire diving towards her with wings ablaze, enough to melt the skin off her bones in an instant. The blink opened her eyes to a brightness making her irises glow as pale as the white of the eye. 

Though she had just seen it, the clone had not attacked her. Not just yet. But glimpsing a different reality's behavior allowed Sierra to fly off the ground, step on a disk of eldritch magic and dodge completely out of the way, before the chance of being hit was even high enough to matter.

Cognizance revealed everything that could happened, that would happen and that already did happen, creating a strain which manifested on Sierra's features in a constant glare of pain. 

All Daisy was met with was the growing luminescence of the crown above Sierra's brow. A pleasant sight given what she was really after. Each twist, each blast of white magic she took, each attempt to keep contained that which was not built for a leash, made her laughter vibrate off of mirrors, surround Sierra in a blanket of anxiety, of looming doom and failure. 

"You think you'll defeat me with your traps and defenses?" 

Mockery reached Sierra on all the reality planes, a mere echo suddenly overlapping an infinite more to a shattering noise; all because Daisy took advantage of that moment in which Sierra worried less about tampering the stretch at which her mind was willing to go naturally and more about the behavior of the dimension. The glow of Sierra's hands had grown beyond her control, pulsing and undulating waves of warping magic which forced her dress to start flickering between different states, shapes and colors even; her mere presence was enough to make the mirrors start cracking and twitching, switching between phases, reflections and even locations. 

"Don't be ridiculous," Daisy appeared right before her, smile wide and malicious. "You are too weak," her hands wrapped around her neck at once, burning instantly at her frail skin, making her gasp for air. "You will lose."

Air went out. Sierra felt her chest convulse hallowed; her eyes rolled back and her vision blurred to one spotted by blackness. Yet, despite the pain, the burn, the blisters on the skin of her neck and that of her palms as she clung to pry Daisy off of her, her lips uttered not one of the myriad of spells in her mind, but a plea... a beg.

Chaos did not listen to her rationality though, but to her unconscious desire instead. Absolute light exploded out of her chest and shattered an escape out of the mirror dimension, splintered up and down the New York City street they've started the fight on. Daisy was sent down the street and Sierra further up, rolling on the ground limply.

The fight with Thor had just come to an end, leaving Spider-Man bent over his knees, costume torched in several places. Tony's suit was sparking at every joint and the street was just starting to be slightly rebuilt by Wong putting back what chunks of it he had identified as not just missing but having been ripped and thrown away. 

That was when the mirror dimension broke an opening and spit out the two women, the same moment when Danny ran from W's side, from getting his update from SHIELD on how things were looking from up in the sky. It was the same moment in which Stephen dropped the unconscious body of Thor and widened his eyes on the sight of the blazing woman rising from the crater in the ground while Sierra barely groaned herself to roll on her back. 

Well, that day has gone from bad to worse beyond her assumptions, Sierra would declare now. 

The dress on her hadn't stop flickering in different variants and the magic slipping from her hands started affecting the ground beneath her, changing its base material from concrete to a series of truly off-putting structures to see in the middle of the street: feathers, snow, rock, sand, candy, flowers, water. The states were ran through in a fast loop, making any watcher's eyes hurt.

Someone called her name, but the sound was too blurred for her to understand whose voice she was hearing. 

In fact, fatigue of both her body and mind had rendered her rather numb to even the state of floating off the ground and being lifted up in the center of a tornado of fire from the wall of which, Daisy came out, right hand outreached and holding her in the air. 

"Please...," Sierra muttered, looking down at the mutant, slowly beginning to understand that her choices were limited: she either died or let the chaos burst out of her and destroy everything. 

The last choice was not even an option. Too many people she cared about were on the street. Though she wasn't there, beyond the walls of fire, she saw them all: Danny's chi gathered in his fists and he was punching the fire, despite the blisters on his knuckles, despite the rawness of the power he tried to go against; beside him, Stephen was trying every spell he knew to dilute the energy, to break a way through, unsuccessfully; so did Wong and Master Zhi-Hao... 

With a battle cry and a blue flaming sword in hand, Illyana jumped from the roof of the Sanctum aiming to land that blade through Daisy. However, the walls of fire raised and with a shape resembling a bird's wing, she was swept aside, thrown on the street.

"No...," Sierra whimpered and the second her body twitched, she felt the telekinetic grip Daisy had on her tighten, squishing her in and bruising her from within. 

"Save us both the trouble and stop fighting," Daisy sighed. "Your death will save everyone and everything from the reign of eldritch terror you herald for."

"I don't want to hurt anyone," Sierra was unsure if her lips really did move, but that was what she wished she could tell when Daisy closed her fist. 

She expected to see her flesh, her blood, her soul implode, but instead, Daisy saw a cloud of dark purple glow and then, as it disappeared, Sierra was nowhere to be seen. Her breath hitched, her eyes widened, back to their normal brown color. 

The walls of fire disappeared and Danny fell through, getting his gaze up in time to see Daisy dissipate in a final tunnel of flames. Doctor Strange threw a disk of orange burning magic after her, but she was already gone.

"Where's Sierra?" Danny breathed out, thumbs shaking into gripping the concrete, despite the pain in his nails threatening to rip off. His voice was defeated, his force had depleted in an instant. 

No one wanted to answer that question because it all looked obvious in pointing towards assuming the worst. No one wanted to assume that Daisy truly killed Sierra, that she was capable of doing that for no reason at all. 

A swoosh on the sky raised everyone's gaze: a sleek black jet was flying in their direction. The X-Men answered the news of the sighting. 

Danny got up with anger in his eyes, staring the jet down as it sought to land. His upper half was bare after fire and lightning had reduced his white button-up to dust and his coat similarly to nothing blown into wind. His pants were ripped and only a bare memory that the dragon tattooed Iron Fist had in plan to get married that day, instead of fight.

Someone would have answers to this injustice, to this chaos; he damn sure hoped they will.