Siren's Call [Alpha Edition] Ravnica −8: Target player gets an

−8: Target player gets an emblem with "Whenever you cast an instant or sorcery spell

Each word rattles your mind

"Know your foes' strengths as well as their weaknesses

{1}{B}: Regenerate Ink-Eyes

{T}: Add one mana of any of the exiled card's colors

Siren's Call [Alpha Edition] Ravnica −8: Target player gets anSet: 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.