Raw Power II
Mekhaz didn't have to worry too much about getting injured. He was already a Tier-3 Awakened and his defense was high enough to block most incoming attacks.
The Living Armor covered him entirely, whereas his other Soultraits, Energy Absorption, and Repel could be applied wherever he wanted. He applied several Repel Runes all over his body and connected them with Energy Absorption to increase their storage capacity.
Combining Energy Absorption with Repel made it easier to absorb more of the incoming damage and increase the power output once enough energy had been accumulated within the Repel runes.
Mekhaz accepted most attacks without paying attention to the inflicted damage. He only blocked or evaded the attacks that would cause too much damage to the Living Armor. It would be a hassle if the Living Armor shattered or if he sustained a heavy injury.