@Tearsax
He did give the stats to Greed in those last few pages but they are not the problem. The problem is gluttony skill going out of control. That's why he gave the stats to Greed, so that he can be stopped/killed if he goes berserk.
@newboi Pretty sure he's putting his stats into the sword. Like all those times he's upgraded it to unlock new forms and whatnot so far. But he's still about to lose his mind to the gluttony skill, so now he'll be mindless and weak as shit. Any random person could probably finish him off if he doesn't absorb too much too quickly.