for the sake of simplicity i recommend you don't go for an abomination since you have to go to pretty dangerious lands to encounter abominations on top of abomination lona having low sta (76 as tough persona 80 a snormal persona) it also gets sick every day causing sta drain and further max sta loss unless you devour a body with devour which restores your sta and hp and removes a stack of sick and the sickly buff
be reborn as a moot +5 scu x0.9 morality the scu is good because its always active even when not sneaking its just be aware moots skin is super dark if not aware of it
as for why i haven't mentioned deepone its because it isn't for fighting playstyle but heres its appearances anyways..
deepone gives you -2 SCU to start its just a worse human at the beginning since -2 scu means everything beelines for you when not sneaking the seawitch has -5 scu and everything tries to rape seawitch on top of that deepone takes the longest to give birth to and has a lot of RNG when it comes to actually being pregnant with it or not