I got enough "Hokey Pokey" questions when Unglued came out that I've learned to never assume anything
(Amethyst) Elsa, Gloves Off (Amethyst) Gaston, Intellectual Powerhouse (Sapphire) Cogsworth, Talking Clock (Sapphire) Cogsworth, Grandfather Clock (Sapphire) Belle, Hidden Archer (Emerald) Bounce (Emerald) Hypnotize (Emerald) Panic, Underworld Imp (Emerald) Bucky, Squirrel Squeak Tutor (Emerald) Cinderella, Stouthearted (Steel) Cinderella, Knight In Training (Steel) The Prince, Never Gives Up (Steel) Tiana, Celebrating Prince (Steel) Robin Hood, Capable Fighter (Steel) Dinner Bell (Ruby) Raya, Warrior of Kumandra (Ruby) Mulan, Soldier in Training (Ruby) Rise of the Floodborn will have over 200 cards, however, so this list will continue to grow as the set gets closer to its official release date
Rhox Faithmender is an easy swap out since it is so focused on lifegain
These two cards can be used to wipe away that little bit of extra damage that is being put onto Mewtwo, and then the rest can be washed away with Super Regeneration