Cube God=<most other event bosses(including rock dragon)=classes with T12 gear<Esben(okay I'm done trying to figure this scaling chain out, not going to make most of these profiles to have to anyway.) Davy Jones, Puppet Master(Encore), Ghost of Skuld, Lord Ruthven, Shaitan, Null, Nightmare Colony, Daichi, LoD Quadruo, Ivory Wyvern, Thessal, Tesseract Godess, Bes/Nut/Geb, Crystal Worm Father, Crystal Worm Mother, Crystal Entity, Avatar of the Forgotten King, The Forgotten Sentinel, Twilight Archmage, The Forgotten King, Malus(full power), Agonized Titan, Marble Defender, Marble Colossus(basically behind Oryx), Void Entity(tied with Oryx), Oryx Simulacrum, Stone Guardians, Janus, Giant Oryx Chicken, Tezcacoatl, El Dorado, Xolotl, F.E.R.A.L, Dammah, Gemsbock, Leucoryx, Beisa, Classes with T13 Gear, Classes with Tier 14 Gear, O2, and O3.
so yeah, considering O3 is the one we are using here and he is at the top of this scaling chain of 40+ characters he should have the AP advantage, and really every advantage, guess there are just no good LS feats in Fire Emblem also Oryx doesn't use his effective hax ever.
so for more input Oryx takes skill by a bit of a landslide, top-tier knight and gladiator in the strongest military in the world(before he became the mad god) with possibly billions of years of experience in combat beats talent any day of the week, i dont know how Corrin fights because frankly i dont give a damn about Fire Emblem, but i do know that Oryx
fights like this, so safe to say Corrin isn't getting comfortably close any time soon