Snapcaster Mage [The List] Open the Helvault put a face down card

put a face down card from your arsenal on the bottom of your deck: Draw a card and prevent the next 1 damage that would be dealt to your hero this turn

If it's a Shadow card

Set: Collectors’ Edition Type: Instant Rarity: Rare Cost: {U} Target player draws three cards

If that mana is spent on an instant or sorcery spell

Snapcaster Mage [The List] Open the Helvault put a face down cardSet: The List Type: Creature Human Wizard Rarity: Rare Cost: {1}{U} Flash When Snapcaster Mage enters the battlefield, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost. (You may cast that card from your graveyard for its flashback cost. Then exile it.)