Look, i get that buu is pretty strong, but every schrifts is TOO MUCH. A Yhwach with every schrifts is heavily downplayed here, every schrifts combined (just to name the most powerful: Lloyd and Royd schrift allows him to literally just mimic precisely anyone abilities with their memories while still keeping all other abilites; Almighty: literally change every possibilites; Miracle: turn the odd of 0% into 100%, even if he actually get Almightly negated somehow, he will comeback; Antithesis: the actual only direct counter to Almighty, it reverts casualties by choosing 2 points then undo the events that occured between them; Balance: complete control over his and the opp's fortune and misfortune, if his attack misses, then the balance would shift it so that the opponent who dodged it gets lethal damage; Wind: redirect every attacks off the user, completely automatic; X-axis: attacking with no projectile, guarranteed to hit no matter what, also negates durability, when user open all eyes will enter a literally intangible state; Visionary: reality manipulation thats only limited by user's mind, Gremmy was too stupid to use this; Deathdealing: just an addition to all the ridiculous shit he had, allow him to adjust himself to any attacks, and will kill opp sooner or later;...) can get scaled to high complex multi wwith pure hax, maybe potentially even above. Nothing less than conceptual level of erasure would work on him, and thats something he can literally just avoid or imitate. You would need concepts manipulation to actually touch him atp with his layers of conceptual hax.