Well, if he's not dwelling on that then he'll be vulnerable to having his shards detached and destroyed. The entities can't hurt him more permanently than that, despite the Warrior's best efforts. And he's bigger than either of them, more powerful, indestructible, and with no energy requirements. And he's willing to use precognition now. Counteracting that is a major energy expenditure.

But the sorceress can repair them whenever he scores a blow, and can act as a generator when required. Stalemate.