one piece kingdoms of intrigue booster box OP-04】Kingdom TCG & CASE〔Factory Sealed〕 coloured cards that offer various strategies and combos One Piece Card Game: Kingdom

MAR cards show up in a dedicated slot in Collector boosters, and you're 100% guaranteed to get one in each booster in that sense, they are more common than proper mythics from the main set

So at least in the Netherlands, it's coming to various local game stores (LGS)

Product details: EachJapanese Terastal Festival ex Booster Box contains 10 booster packs containing 10 random cards each

Country: Japan

PS Platinum Secret Rare QCSE Quarter Century Secret Rare Invoked Mechaba X LIGHT Level 9 [ MachineFusionEffect ] ATK 2500 DEF 2100 "Aleister the Invoker" + 1 LIGHT monster Once per turn, when a Spell/Trap Card, or monster effect, is activated (Quick Effect): You can send the same type of card (Monster, Spell, or Trap) from your hand to the GY

She is great at holding off fliers and man lands which most other walkers struggle against