Ajani's Aid [Aether Revolt]

Set: Aether Revolt Type: Enchantment Rare Cost: {2}{G}{W} When Ajani's Aid enters the battlefield, you may search your library and/or graveyard for a card named Ajani, Valiant Protector, reveal it, and put it into your hand. If you search your library this way, shuffle it. Sacrifice Ajani's Aid: Prevent all combat damage a creature of your choice would deal this turn.