Corpse Dance [Tempest] Merfolk you may pay {X}

you may pay {X}

that spell can't be countered

Set: Legends Type: Instant Common Cost: {B} Prevent all combat damage that would be dealt this turn

Set: Mirrodin Type: Legendary Artifact — Equipment Rare Cost: {4} Equipped creature gets +5/+5

flowing with waters more ancient than the world itself

Corpse Dance [Tempest] Merfolk you may pay {X}Set: Tempest Type: Instant Rare Cost: {2}{B} Buyback {2} (You may pay an additional {2} as you cast this spell. If you do, put this card into your hand as it resolves.) Return the top creature card of your graveyard to the battlefield. That creature gains haste until end of turn. Exile it at the beginning of the next end step.