Been RP with KamuiOfKotan and I'm gonna tell you all about some of their Divine Dragon Tail Sword.

UPDATE: Fannames Given by BurningMagician

Kasai:

Ragnarok/Flamexcalibur:
He only transform his sword into Red colored Fire Sword. His Animal and Elemental Spirit is Wolves and He is Valor/Bravery. Originally Pack

Mizu:

Undine Song:
She transform her sword into a Water Bow. Her animal and Elemental spirit is Hawks and she is Purity

Mori:

Gaia/Terra:
He transform his sword into His Green Hammer with Roots and plants sticking out. His Animal and Elemental Spirit is Bulls and He is Resilience

Kou:

Gungnir:
He transform his sword into a Yellow Spear. His Animal and Elemental Spirit is Doves and he is Balance

Kage:

Death Scythe/Cronus Scythe:
He Transform his sword into a Purple scythe. His Animal and Elemental Spirit is Crows and Balance like Kou

UPDATE AGAIN: Gunvolt Septima crossover time!

- Kasai =

Septima: Fiery Phoenix

Colors: Red, Orange

Ability: Fire Manipulation(he can use pyromancer attacks with the powers of Two Fire Gods, Agni and Lugh)

Weapon: Ragnarok/Flamexcalibur(His Divine Dragon Tail Sword can turn into Flamexcalibur)

Phenomenon (Rare When Outburst):
He have an red chest plate. Have Red mechanical gloves. Metallic Phoenix wings in his back. Also Have some Metalic Laurel glowing in red. No Pauldrons so Kasai can see his muscles

Skill:
THOU SHALL FACE
THIS FIERY OF AGNI
WITHIN ITS RADIATION!
AGNI RADIATION!
Info: Like Agni Radiance (from Touhou), But few Fire Balls begun to shoot as well, Circling the fire.

- Mizu =

Septima: Deep Undine

Colors: Blue, Light Blue

Ability: Water Manipulation(She can also form bubbles, make a whirlpool and More. She can also use the Power of Leviathan)

Weapon: Undine Song(Her Sword will turn into a Bow called Undine Song)

Skill:
THE SEA GODDRESS UNDINE.
RISE UP FROM THE WATERS.
TO SANG THEIR LAST SONG OVER THE WATER!
SONG OF UNDINE
Info: Like Patchouli spellcard Princess Undine, This one have few musical symbols on it.

- Mori =

Septima: Silent Nature

Color: Green

Ability: Nature/Wood Manipulation (Plants, flowers, trunks, Roots. Mori control nature powers using his Gaia Hammer and have the Cu Chullainn power)

Weapon: Gaia/Terra(He transform his swords into A Hammer with plants and roots stick out called Gaia)

Skill:
VAST GREEN IN THE FIELDS
TURNS INTO A STORM
WITH A SINGLE HORN FROM SYLPH!
SYLPHY STORM
Info: It uses the same function as Green Storm from Touhou. But Tornadoes appeared and makes the green bullets goes to someone with a direct hit

- Kou =

Septima: Diving Aether Light of the God

Colors: Yellow, Gold, White

Ability: Aether/Light manipulation (Calling upon gods to create light, path and even holy stuff to attack the enemies or to make path so people can walk through. And have the powers of Eos)

Weapon: Gungnir (He transform his sword into A spear named Gungnir)

Skill:
RISEN UP MY GODS!
MY DIVINE LIGHT SHALL PURIFY YOU!
IN THIS BLAZING SUN OF THE ROYAL FLARE!
PURIFY BLAZE!
Info: He collected every lights from the sun and God. The he explode everything with few solar flare shooting when exploding Purify Blaze

- Kage =

Septima: Necromancy Nether Shadows of the Devil

Color: Purple, Black, Dark Purple

Ability: Nether/Dark manipulation (Summon Devils, Skeleton and Demons, Create Shadows, and more Ritual Stuff. Also have The powers of Nix)

Weapon: Death Scythe/Cronos Scythe(His Sword turn into a Scythe called Death Scythe)

Skill:

SELENE, GODDRESS OF THE MOON
GIVE ME THE CURSE OF THE LUNAR STONE!
AS I BESTOW YOU IN THIS DARK MOON!
SILENT PURPLE MOON!
Info: Like Silent Selene(from Touhou as well, Steams of Vertical Laser shoots up from the ground around Kage. But This also shines up Purple-colored Moon and begun shooting the Lasers as the lasers were purple.

But with Linda channels the Red Lady Powers, the be able to use Charge Attacks/Spellcards inbued with Irisphone