Titans' Nest
Enchantment
(CMC 4)
At the beginning of your upkeep, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)
Exile a card from your graveyard: Add . Spend this mana only to cast a spell that's one or more colors without in its mana cost.
- [IKO] Ikoria: Lair of Behemoths #212 (R)