Siren's Call [Alpha Edition] Legendary Enchantment defending player sacrifices a creature

defending player sacrifices a creature with the least power among creatures they control

then you may return a creature card from your graveyard to your hand

Whenever another colorless creature enters the battlefield under your control

Set: Duskmourn: House of Horror Type: Enchantment Creature — Elk Glimmer Rarity: Mythic Cost: {1}{G}{G} Vigilance

and the salt disappeared

Siren's Call [Alpha Edition] Legendary Enchantment defending player sacrifices a creatureSet: Alpha 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.