Unstable Amulet (Retro) [Modern Horizons 3]

Set: Modern Horizons 3 Type: Artifact Rarity: Uncommon Cost: {1}{R} When Unstable Amulet enters the battlefield, you get {E}{E} (two energy counters).Whenever you cast a spell from anywhere other than your hand, Unstable Amulet deals 1 damage to each opponent.{T}, Pay {E}{E}: Exile the top card of your library. You may play it until you exile another card with Unstable Amulet.