Ongoing Investigation [Murders at Karlov Manor Commander]

Set: Murders at Karlov Manor Commander Type: Enchantment Rarity: Uncommon Cost: {1}{U} Whenever one or more creatures you control deal combat damage to a player, investigate. (Put a colorless Clue artifact token onto the battlefield with "2, Sacrifice this artifact: Draw a card.")1G, Exile a creature card from your graveyard: Investigate. You gain 2 life.