Siren's Call [Alpha Edition] Mountain Plains {U}: Wall of Water gets

{U}: Wall of Water gets +1/+0 until end of turn

or becomes tapped

Set: Strixhaven: Mystical Archive Type: Instant Rarity: Mythic Cost: {1}{B} Exile the top card of your library

Set: Jumpstart Type: Enchantment Rarity: Rare Cost: {2}{G} If one or more +1/+1 counters would be put on a creature you control

Siren's Call [Alpha Edition] Mountain Plains {U}: Wall of Water getsSet: 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.