
Draw two cards, then discard a card. Create a tapped Powerstone token. (It's an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.")
Stern Lesson has 1 printing, first in The Brothers' War (2022). EDHREC ranks it #10,833 among Commander cards. It appears most in Golbez, Crystal Collector decks (1,503 on EDHREC). It has 3 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.