Siren's Call: Limited Edition Beta Legacy you may search your library

you may search your library for a Rat card

Lifelink If a nontoken creature an opponent controls would die

Lava Spike deals 3 damage to target player or planeswalker

the Risen Deep deals combat damage to a player

Siren's Call: Limited Edition Beta Legacy you may search your libraryCast 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.