Warren Instigator [Duel Decks: Merfolk vs. Goblins] Phyrexian Horror Set: Modern Masters Type: Artifact

Set: Modern Masters Type: Artifact — Equipment Rarity: Uncommon Cost: {0} Equipped creature has "{T}: Add one mana of any color

but it is fickle

Set: Junior Super Series Type: Creature — Elf Rarity: Rare Cost: {G} {G}

Set: Unlimited Edition Type: Artifact Rarity: Rare Cost: {3} {3}

Warren Instigator [Duel Decks: Merfolk vs. Goblins] Phyrexian Horror Set: Modern Masters Type: ArtifactSet: Duel Decks: Merfolk vs. Goblins Type: Creature Goblin Berserker Rarity: Mythic Cost: {R}{R} Double strike Whenever Warren Instigator deals damage to an opponent, you may put a Goblin creature card from your hand onto the battlefield. There is always a rabble to be roused.