Siren's Call [Beta Edition] Vintage −7: Untap up to six

−7: Untap up to six target lands

Set: Friday Night Magic 2005 Type: Artifact Rarity: Rare Cost: {4} {1}

Set: Kaladesh Inventions Type: Artifact Creature — Thopter Rarity: Mythic Cost: {0} Flying

In fire there is the spark of chaos and destruction

put one of those cards on top of your library and the rest on the bottom of your library in any order

Siren's Call [Beta Edition] Vintage −7: Untap up to sixSet: Beta Edition Type: Instant Rarity: Uncommon Cost: {U} Cast this spell only during an opponent's turn, before attackers are declared. Creatures the active player controls attack this turn if able. At the beginning of the next end step, destroy all non Wall creatures that player controls that didn't attack this turn. Ignore this effect for each creature the player didn't control continuously since the beginning of the turn.