Siren's Call [Beta Edition] Battle Academy • 2–4 cards of rarity

• 2–4 cards of rarity Rare or higher in every pack

• 1 Price of Knowledge

11 traditional foils

and 1 Spindown life counter

• 1 Foil-Etched + 10–11 Traditional Foil cards in every pack

Siren's Call [Beta Edition] Battle Academy • 2–4 cards of raritySet: Beta 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.