Snapcaster Mage [Modern Masters 2017] promo you may attach it to

you may attach it to target creature you control

Prevent all damage that would be dealt to him this turn

using their libraries as their decks

Set: Arena League 2000 Type: Basic Land — Forest Rare Cost: ({T}: Add {G}

with the exquisite caste above them

Snapcaster Mage [Modern Masters 2017] promo you may attach it toSet: Modern Masters 2017 Type: Creature Human Wizard Mythic 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.)