Goblin Chieftain [Jumpstart] Aether Revolt Promos Set: Commander 2021 Type: Creature

Set: Commander 2021 Type: Creature — Beast Rarity: Rare Cost: {4}{G} Whenever Blossoming Bogbeast attacks

or if it's just a special card for MagicCon Philadelphia

Set: March of the Machine Type: Artifact — Equipment Rarity: Mythic Cost: {3} Equipped creature gets +2/+2 and has protection from blue and from black

ancient civilizations alive and well

Goblin Chieftain [Jumpstart] Aether Revolt Promos Set: Commander 2021 Type: CreatureSet: Jumpstart Type: Creature Goblin Rarity: Rare Cost: {1}{R}{R} Haste (This creature can attack and {T} as soon as it comes under your control.) Other Goblin creatures you control get +1 +1 and have haste. "It's time for the 'Smash, Smash' song!"