WutDelusional
A new technique he should get is Makinas revival technique where if he dies then it kills one of his subordinates instead as he can just force the contract on them he can also make a binding vow like he must know the name and description of the subordinates technique name or appearance to make it more effective or just one of those but still a pretty strong technique Contract Technique: Reverant Suicide Can be used instinctively or consciously User establishes a contract with a curse spirit or sorcerer this can be consensual or non consensual That allows the contracted to sacrifice their life and all their cursed energy in order to Heal the user using all their cursed energy generated by the technique/2 instantly converting it into positive cursed energy that heals the user this can be used consciously by the user but is instinctively activated upon the death of the contractor. Note this doesn’t mean full healing as the level of healing depends of the amount of cursed energy the sacrifice has divided by 2. Binding vow attached: The user must remember the description of the Contracted such as Name,Technique and appearance this removes the /2 part of the cursed technique doubling the effectiveness of the technique.
He can also Increase his strength by incorporating pacts with inanimate objects through inscription techniques or apply multiple contracts at the same time by infusing them into talismans. He also has the potential to make a mean sealing technique especially if used in conjunction with his domain just saying