
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 {C}. Spend this mana only to cast a spell that's one or more colors without {X} in its mana cost.
Titans' Nest has 5 printings, first in Ikoria: Lair of Behemoths (2020). EDHREC ranks it #10,043 among Commander cards. It appears most in Teval, the Balanced Scale decks (7,607 on EDHREC). It has 2 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.