Marisi, Breaker of the Coil [Commander 2019] Hydra Avatar counter target spell with mana

counter target spell with mana value X or less

Arien is the envy of the Court

Set: Beta Edition Type: Creature — Elf Druid Rarity: Common Cost: {G} {T}: Add {G}

Set: Kaladesh Prerelease Promos Type: Artifact Creature — Construct Rarity: Mythic Cost: {4}{U}{U} Flash

Of course they do

Marisi, Breaker of the Coil [Commander 2019] Hydra Avatar counter target spell with manaSet: Commander 2019 Type: Legendary Creature Cat Warrior Rarity: Mythic Cost: {1}{R}{G}{W} Your opponents can't cast spells during combat. Whenever a creature you control deals combat damage to a player, goad each creature that player controls. (Until your next turn, those creatures attack each combat if able and attack a player other than you if able.) "Cast off the law! Awaken your rage!"