valuable pokemon energy cards Surging Sparks Hyper Rare Jet Special Energy Card #252 Provides one [Psychic] energy Valuable Energy Cards! : r/PokemonTCG

And they're supposedly the original cards, before anything else come out. Until then, some Pokmon cards are seeing their status rise, even in the shadow of the Illustrator

Bazaar Trader One of the most efficient repeatable donors we have, Bazaar Trader is also sneaky in Yasova Dragonclaw decks

Invigorate is one of the best pump spells on rate, since it will effectively give Livaan +7/+4 for zero mana

Invasion of Ikoria [Creature Toolbox With Teeth] Invasion of Ikoria is a flexible tutor that adapts to game state and deck speed

#2 Given the lack of a reasoning, my guess is likely that something in a future set like Ninja Spinner enables something completely broken with Medicham V