Ajani's Aid

When this enchantment enters, 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. Sacrifice this enchantment: Prevent all combat damage a creature of your choice would deal this turn.

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6odq859o5jpb1hvya6ag0o.