I turn to the fight. I see Erza barely standing. Minerva makes a wicked smile and she uses her magic to throw Erza into a nearby pillar using her injured foot. 

On the ground Erza sits up trying to pick herself up off the ground.

"Attempting to stand is futile and you know it. Just look at yourself." Minerva says

"I'll manage." Erza says as she slowly stands up. "You know...picking a fight with Fairy Tail, hurting Lucy, Kagura, and Millanna...was a bad mistake."

"My magic is befitting of the strongest mage. Why shouldn't I use it?" Minerva responds

Then Erza attacks Minerva successfully landing every hit. She then unlocks her Second Origin and requips into some sort of armor.

"Oh! I've read about that armor!" Levy says "It's a very powerful armor but not many people used it because it drained so much power out of them."

"Huh... I wonder what else this armor is capable of doing." I say curiously

Funny enough by the time I turn around I see Erza casting a spell.

"Nakagami Starlight!" She yells

"No...stop!" Minerva begs

"What's this? Is my sadistic sister really begging...begging for mercy? That's something I thought I'd never see." I think 

Erza swings her halberd with enough force to send Minerva into the air spinning.