Hedron Detonator (Extended Art) [March of the Machine Commander] Human Barbarian Warrior Sacrifice this artifact: Add two

Sacrifice this artifact: Add two mana of any one color

Whenever a Dragon enters the battlefield under your control

When Treebeard

{R}: Exile Urabrask

All these childhood memories are getting in the way of the vault codes

Hedron Detonator (Extended Art) [March of the Machine Commander] Human Barbarian Warrior Sacrifice this artifact: Add twoSet: March of the Machine Commander Type: Creature Goblin Artificer Rarity: Rare Cost: {2}{R} Whenever an artifact enters the battlefield under your control, Hedron Detonator deals 1 damage to target opponent. {T}, Sacrifice two artifacts: Exile the top card of your library. You may play that card this turn.