Btw Devil B, your boss idea Destroyer Angel[Name : Katastrophi] I think should be that mysterious lady from my story, while meeting with either Dante or Nero she is in human disguise but in heaven, she is the second last boss before the General (I really need an awesome, powerful sounding name for this dude LOL). Now IMHO I don't think Dante should need to go DT for her as I think he should only be pushed to his full extent against the General, but I like your other ideas for her. She has two forms - the first is her with the twin swords and what not and the second, I like your "Angel Trigger" idea, I imagine her forming armour over her shoulders and other parts of her body and LOVE your idea about wings made of holy flames (pure white flames) her eyes are fire and her swords glow. AND yes she would move like a DT Dante Trickster. I think after you defeat her (going all out in human mode) she lays there dying, slowly dissintergrating in specs of light, she further insults Eva and Dante gruesomly thrusts Rebellion through her stomach, killing her painfully. You would then see the General, at a higher point still, stand from his throne and grab his holy sword. "It is time."