
Draw two cards, then discard two cards.
Careful Study has 6 printings, first in Odyssey (2001). EDHREC ranks it #2,633 among Commander cards. It appears most in Hashaton, Scarab's Fist decks (7,015 on EDHREC).
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.