Warren Instigator [Duel Decks: Merfolk vs. Goblins] Instant Set: Wilds of Eldraine Type:

Set: Wilds of Eldraine Type: Legendary Artifact Rarity: Mythic Cost: {2} You may spend mana as though it were mana of any color to activate abilities of creatures you control

but I can assure you

Before the battle of Red Cliffs

Set: Phyrexia: All Will Be One Promos Type: Creature — Phyrexian Horror Rarity: Mythic Cost: {B}{B}{B}{B} Trample

Set: Arabian Nights Type: Artifact Rarity: Rare Cost: {8} {8}

Warren Instigator [Duel Decks: Merfolk vs. Goblins] Instant Set: Wilds of Eldraine Type:Set: 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.