200 pokemon cards gx THESE "NEW" BOXES HAD OVER ULTRA RARES INSIDE! A PSA 10 Mewtwo GX

You can only cast a legendary sorcery if you already control a legendary creature or planeswalker

M15 Clash Packs are not replacing Event Decks, but instead will alternate with them for each release

Tapu Koko VMAX Combined with Electrode from Vivid Voltageand perhaps even Omastar from Team UpTapu Koko VMAX looks to be a potential menace, keeping the opponent either locked up with Paralysis or knocking them out entirely with its Max Shock attack

Those ones arent generally considered Showcase treatments by name, but most variants that are can be found in Play boosters

Leonin Arbiter is commonly used in Modern where fetch lands are very prevalent