Siren's Call [Beta Edition] Modern Masters Tokens it used to be seven

it used to be seven men

at the beginning of each of your upkeeps for the rest of the game

remove all mire counters from a land that a mire counter was put onto with Cyclopean Tomb but that a mire counter has not been removed from with Cyclopean Tomb

if you have 40 or more life

Siren's Call [Beta Edition] Modern Masters Tokens it used to be sevenSet: 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.