Siren's Call [Beta Edition] Iconic Masters If an effect causes you

If an effect causes you to discard a card

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Set: Zendikar Expeditions Type: Land Rarity: Mythic {T}: Add {C}

Set: Battle for Zendikar Prerelease Promos Type: Legendary Planeswalker — Gideon Rarity: Mythic Cost: {2}{W}{W} +1: Until end of turn

Siren's Call [Beta Edition] Iconic Masters If an effect causes youSet: 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.