Carnival Hellsteed [Return to Ravnica] Legacy creatures can't attack unless their

creatures can't attack unless their controller pays {X} for each attacking creature they control

Set: The Brothers' War Type: Artifact Creature — Assembly-Worker Rarity: Common Cost: {3} Reach

Set: Journey into Nyx Defeat a God Type: Token Enchantment Creature — Nymph Reveler Rarity: Common As long as five or more Revelers are on the battlefield

Set: Kaldheim Prerelease Promos Type: Legendary Creature — Shapeshifter Rarity: Mythic Cost: {3}{U} Changeling

Set: Mystery Booster Playtest Cards Type: Creature — Bat Fungus Horror Rarity: Rare Cost: {3}{B}{G} Flying

Carnival Hellsteed [Return to Ravnica] Legacy creatures can't attack unless theirSet: Return to Ravnica Type: Creature Nightmare Horse Rarity: Rare Cost: {4}{B}{R} First strike, haste Unleash (You may have this creature enter the battlefield with a +1 +1 counter on it. It can't block as long as it has a +1 +1 counter on it.) Its favorite treats are candied hands and sweet hearts.