Guardian Angel [Alpha Edition] Guilds of Ravnica Promos pitting you and your friends

pitting you and your friends against a shadowy horror

then shuffle all cards from your graveyard into your library

you lose 1 life and create a Treasure token

someone else's bite

Set: Double Masters Type: Legendary Artifact Rarity: Mythic Cost: {0} Metalcraft — {T}: Add one mana of any color

Guardian Angel [Alpha Edition] Guilds of Ravnica Promos pitting you and your friendsSet: Alpha Edition Type: Instant Rarity: Common Cost: {X}{W} Prevent the next X damage that would be dealt to any target this turn. Until end of turn, you may pay {1} any time you could cast an instant. If you do, prevent the next 1 damage that would be dealt to that permanent or player this turn.