Well what his Holiness did was that he entered through the gem in the Sparda Statue's head, and kinda took control of it.
The pic I posted was after His Holiness is defeated.
I don't know why, but it's hard for me to explain it. But yes, kinda like what you are saying. I just thought that the DMC reference might help me understand what you were getting at.
Basically for the fight with Lucius, I was just thinking that it would be---
First you would fight him in his armor. I'm pretty sure everyone wanted that.
Then he would turn into a Sacrifice, and kinda like "summon" the bigger Sacrifice to use as a "weapon".
Basically this---
Would be attached to the creature, somehow....maybe tentacles/wires attached to his back, lead up to the creature.
The more and more I think of it, the more and more I think the Larger Sacrifice should be like half a body.... you know, torso up. (To fit along with the Ultima pic I provided)
It's hard for me to describe my input for the larger Sacrifice.... going with what you were saying king_mickey....I was thinking like maybe there's a cavity in the Sacrifice's chest, in which Lucius is and is controlling the big thing. Or throughout the fight, the fab four could create such a cavity....?
But anyways, basically the heroes would fight against this large Sacrifice and then afterwards, would go after Lucius, still in Sacrifice form.
Then, (going off the cavity in the chest I said) they would land on....maybe a platform within the cavity, then they'd fight a few Sacrifice's, and then after awhile, Lucius would drop from his suspension, and then the heroes would fight against Sacrifice Lucius.
Then after all that, the larger Sacrifice would deteriorate and then the fab four would leave.
Then they'd return to the top of Lucius' Tower, to confront him for his big final speech, and then finally die.
If that's hard to understand, then I'm sorry. I found it hard to explain it with words.......