Pyroblast [Eternal Masters] Shards of Alara you may sacrifice a Merfolk

you may sacrifice a Merfolk

Set: Limited Edition Beta Type: Sorcery Rarity: Uncommon Cost: {2}{G} Destroy target land

Set: Limited Edition Alpha Type: Instant Rarity: Rare Cost: {U} Change the text of target spell or permanent by replacing all instances of one basic land type with another

Set: New Phyrexia Prerelease Promos Type: Artifact Creature — Shapeshifter Rarity: Rare Cost: {3}{U/P} ({U/P} can be paid with either {U} or 2 life

Pyroblast [Eternal Masters] Shards of Alara you may sacrifice a MerfolkSet: Eternal Masters Type: Instant Rarity: Uncommon Cost: {R} Choose one Counter target spell if it's blue. Destroy target permanent if it's blue. Water can be crushing, but it is predictable. Fire is always dynamic, its rage absolute and all consuming.