Siren's Call [Limited Edition Alpha] UP Alcove Tower including the Star Knight

including the Star Knight

Matter Absorption — Whenever an artifact is put into a graveyard from the battlefield or is put into exile from the battlefield

You'll immediately and easily know the worth of every character

{1}{B}{R}: Put a -1/-1 counter on another target creature

-2: Search your library for a card

Siren's Call [Limited Edition Alpha] UP Alcove Tower including the Star KnightSet: Limited Edition Alpha 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.