Furore

Fury Hurts.
Fury is a DLC exclusive hero, and he belongs to a different faction than H.N.T and could definitely count as one of the strongest characters in Flame's Story, despite being kinda overpowered, he can come with you as any companion would. When he is below 30% health, his atk will be increased to 30X, at level 1, his atk would go from around 245 to 7350, this multiplier gets higher the lower his health, until he's K.Oed, for example, if he's at 29% health his attack would go up to 31%, and so forth. Meaning if hee was at 10% health, he'd deal 50X more OP, which is why you can only use him in hell's Fury quests. As that is end game DLC, and all the enemies are Overpowered anyway, however, if you use him against any other enemy, he'll demolish them.
 * LvL 1 Health: 3000
 * LvL 1 ATK: 200 (+Multiplier)
 * LvL 10 Health: 5500
 * LvL 10 ATK: 545 (+Multiplier)