Thassa, Deep-Dwelling [Theros Beyond Death] XY187 (They deal damage to creatures

(They deal damage to creatures in the form of -1/-1 counters

cards on your field is equal to or less than the number on your opponent's field and you have 5 or less cards in your hand

Sacrifice Marsh Flats: Search your library for a Plains or Swamp card

Set: Bloomburrow Type: Creature — Elemental Snake Rarity: Mythic Cost: {5}{B} As an additional cost to cast this spell

Set: Kaldheim Type: Legendary Creature — God Rarity: Rare Cost: {3}{B}{B} Menace

Thassa, Deep-Dwelling [Theros Beyond Death] XY187 (They deal damage to creaturesSet: Theros Beyond Death Type: Legendary Enchantment Creature God Rarity: Mythic Cost: {3}{U} Indestructible As long as your devotion to blue is less than five, Thassa isn't a creature. At the beginning of your end step, exile up to one other target creature you control, then return that card to the battlefield under your control. {3}{U}: Tap another target creature.