Fear of the Unknown (-) - Un-Known Event Playtest Cards Set_Dragon Majesty Colorless G-Max Rapid Flow Discard

Colorless G-Max Rapid Flow Discard all Energy from this Pokémon

You switch Staryu with 1 of your Benched Pokémon

Colorless Dark Corridor (60) Your opponent's Active Pokémon is now Poisoned

and Pokémon VSTAR with a hotshot who knows how to put all that power to good use

In particular

Fear of the Unknown (-) - Un-Known Event Playtest Cards Set_Dragon Majesty Colorless G-Max Rapid Flow DiscardCard TypeEnchantment Creature Nightmare RarityPromo Legalities Trample When you cast this spell, choose a playtest card you own from outside the game. Exile it. You may cast that card as long as it remains exile. Mana of any type can be spent to cast that spell. (In a sealed event, outside the game is your sideboard.)