Stoneforge Mystic [Double Masters] Primaris sacrifice it unless you exile

sacrifice it unless you exile another Merfolk you control

Set: Mercadian Masques Type: Enchantment Rarity: Rare Cost: {2}{G} Exile a creature you control: Add X mana of any one color

Set: San Diego Comic-Con 2017 Type: Legendary Planeswalker — Gideon Rarity: Mythic Cost: {1}{W}{W} +1: Until your next turn

Set: Planechase Anthology Planes Type: Plane — Serra's Realm Rarity: Common When you planeswalk away from Sanctum of Serra

Stoneforge Mystic [Double Masters] Primaris sacrifice it unless you exileSet: Double Masters Type: Creature Kor Artificer Rarity: Rare Cost: {1}{W} When Stoneforge Mystic enters the battlefield, you may search your library for an Equipment card, reveal it, put it into your hand, then shuffle. {1}{W}, {T}: You may put an Equipment card from your hand onto the battlefield.