It's one of Japan's unnumbered promo cards, which have short print runs attached to specific events like tournaments and film releases
Useless counters64 (10 useless counters36, 50 useless counters18, 100 useless counters10)
Key Cards: Charizard GX (SSR), Umbreon GX (SSR), Espeon GX (SSR), Sylveon GX (SSR), Mewtwo GX (SSR), plus a massive Shiny lineup across the set
This single attack requires a lot of planning ahead of time, but can truly be devastating at the right moment, turning the tides of battle in an instant
Use in Competitive Play Setting up support moves Absorbing Fire, Rock and Steel hits Constant pressure through Ground and Water moves Moves, TMs and Field Moves Available Quagsire has a wide range of moves learned by level-up, TM and sometimes field moves depending on the version
(For the sanity of players who aren't familiar with the "type" names, I'll be using "Vintage" and "Standard" to refer to Type 1 and Type 2 henceforth) Oh, WotC also realised something else