pokemon card gx Necrozma - SM - Burning Shadows [2] Rage (20+) This attack does 10 more damage for each damage counter on this Pokemon Gardevoir & Sylveon GX Pokemon

Its an absurdly expensive Reserved List card, which is why you probably dont see it played often, though Commander players can get a taste of it from Eiganjo Dynastorian

Whimsicott VSTAR PCC - Tricky Wind 160 Your opponent can't play Pokmon Tools or Special Energy from their hand during their next turn

Nahiri, the Harbinger 8 While four drops are usually a little too steep to be considered good discard outlets this card is so potent and so on theme that it is a well worthy inclusion should you be able to support the colours

Return target creature card with mana value X or less from your graveyard to the battlefield

1] [Main Activation] [Once per Turn] Draw one card, place one card from your hand on top or bottom of the deck

If you want to buy a card and have fun with it, then by all means just buy it whenever