Siren's Call (Retro) [30th Anniversary Edition] Water [x2] Pack and coin may vary

Pack and coin may vary by product

T: Add one mana of any color

If you lose the flip

"Progress update: the problem of the slagheap blocking the entrance seems to have solved itself

especially if the job is blasting Phyrexians in the face

Siren's Call (Retro) [30th Anniversary Edition] Water [x2] Pack and coin may varySet: 30th Anniversary 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.