I don’t play PikaRom, so I can’t give swap suggestions, but I’ll tell you which cards are rotating.
Tapu Koko GX
Tapu Lele GX
Marshadow
Guzma
Acerola
Rescue Stretcher
Anther Paradise
Choice Band
Ultra Ball
Weaknesss Policy
Nest Ball
Field Blower
Lightning Energy jk
If this is post rotation, then I strongly suggest the Incineroar GX/Alolan Ninetales GX variant. You can search your basics work Elm, and everything else with Cherish Ball.