Siren's Call [Fourth Edition] 2023-12-28 When Spreading Algae is put

When Spreading Algae is put into a graveyard from the battlefield

Flying Sacrifice three other creatures: Transform Voldaren Pariah

Set: Champions of Kamigawa Type: Sorcery — Arcane Uncommon Cost: {3}{B}{B} Creatures you control get +1/+0 and gain fear until end of turn

You may choose not to untap Whip Vine during your untap step

Set: Darksteel Type: Instant Common Cost: {2}{R} Choose one — • Barbed Lightning deals 3 damage to target creature

Siren's Call [Fourth Edition] 2023-12-28 When Spreading Algae is putSet: Fourth Edition Type: Instant 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.