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" —Baron Bertram Graywater
using it as the Fusion Material
You can only activate 1 "Harmonic Synchro Fusion" per turn
Set: EX: Team Rocket Returns Type: Stadium Rarity: Uncommon
Set: Sun & Moon: Trainer Kit - Alolan Sandslash Type: Water Rarity: Promo Retreat cost: Colorless
Relentless Rats (Borderless) [Secret Lair Showdown] 62 " —Baron Bertram GraywaterSet: Secret Lair Showdown Type: Creature Rat Rarity: Rare Cost: {1}{B}{B} Relentless Rats gets +1 +1 for each other creature on the battlefield named Relentless Rats. A deck can have any number of cards named Relentless Rats. If you nourish them, they grow calamitous.
