I believe in gaming terms, it’s called “snapshot”. Basically life psychic snapshots the matk for the homunculus for 8 minutes, and afterwards, you can change equips to boost every other stat. Think of it like giving the homunculus their own equipment set.
I basically put 0 points on the acid skill branch. Maxed life psy and the related homunculus skills. Level 1 hell plant (because I’m magic). Life merge, health link, gene modification max lvl. Remaining points can be chemical weapon protection branch, healing skill, demonic fire. As needed.
I think it’s more important to get good aeq with high magic atk%. I tried Ora X again with 22% handbook depo (I took everything out) and still barely managed to win