So long as a card was printed at common at any point, it is legal in the format (excluding acorn-stamped, illegal, and banned cards)
Opal #184 Pokemon Vivid Voltage Keep track of your collection value over time
Taking the same 60 from Andrew Mahones Worlds run, this is a vicious deck
These qualities make Spheal and its evolutions versatile, if not iconic, within the broader Pokmon ecosystem
Crow Macro Cosmos Fog King Legendary Jujitsu Master Il Blud Vampire Hunter Elemental HERO Shining Flare Wingman Armed Dragon LV10 Cyber Dragon Allure of Darkness Aqua Chorus Speed Duel GX: Duelists of Shadows is available in stores now
Having the 1/1 creature survive to attack the opponent over 10 turns is obviously impractical, but its the flavour that matters here