Siren's Call [Beta Edition] Nissa {T}: Counter target activated ability

{T}: Counter target activated ability from an artifact source unless that ability's controller pays {W}

that spell can't be countered

Set: Amonkhet Invocations Type: Instant Rarity: Mythic Cost: {U} Change the target of target spell with a single target unless that spell's controller pays {2}

The earth's real treasure is far deeper

Vastwood Seer enters the battlefield

Siren's Call [Beta Edition] Nissa {T}: Counter target activated abilitySet: 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.