
If it's neither day nor night, it becomes day as this creature enters.
Whenever day becomes night or night becomes day, draw a card.
Firmament Sage has 2 printings, first in Innistrad: Midnight Hunt (2021). EDHREC ranks it #26,397 among Commander cards. It appears most in Vadrik, Astral Archmage decks (267 on EDHREC). It has 5 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.