Unstable Mutation [Ultimate Masters] SWSH122 you may put a +1/+1

you may put a +1/+1 counter on Thraximundar

the Dreamer deals combat damage to a player

Set: War of the Spark Type: Legendary Artifact — Vehicle Rarity: Rare Cost: {6}{W}{W} Flying

Set: Kamigawa: Neon Dynasty Commander Type: Land — Mountain Forest Rarity: Rare ({T}: Add {R} or {G}

Set: Modern Horizons 2 Type: Artifact — Equipment Rarity: Uncommon Cost: {1}{W} When Barbed Spike enters the battlefield

Unstable Mutation [Ultimate Masters] SWSH122 you may put a +1/+1Set: Ultimate Masters Type: Enchantment Aura Rarity: Uncommon Cost: {U} Enchant creature Enchanted creature gets +3 +3. At the beginning of the upkeep of enchanted creature's controller, put a 1 1 counter on that creature.