InterPlanarGod
Hmmm. Essence of Cultivation seems kinda iffy. Essence of the Archmage would have been better tbh. Most anime worlds have Magic. But I wonder what you'll do with this
I feel like essence of mad doctor would be a better one to combine with ideal growth, with no limits and the ability to remove downside via training, just make some super lucky potions, some cultivation and mana capacity potions, gobble them up and just wing it. If you do something wrong you could just remove it with one of the perks of ideal growth and try again. That is not including the ability to make homunculi that are superior to the baseline person of ANY species.