You may use Gradient in this story as long as three conditions are met:

1) HE STAYS HUMAN! Gradient is a FOmar, not a FOfurre.
2) He gets to use his signature weapon, the Viridia Card. I'll get a picture of the viridia logo and that's just on the card. Simple throwing weapon, enchanted to deal damage upon impact and return to the thrower's hand. Set of 5.
3) GRADIENT'S MAG, DAVIL'S TAIL, IS NOT FURRY! It's a metal robot used to aid Gradient. It boosts his mind capabilities, and can NOT be shared with others. It's equipped like a piece of armor, so in order to give it to another person he must unequip it and give it like an item. Don't ask, just know. It's long, slender, Black with a bright blue photon crystal at the end. I will supply a picture if needed. ^_^