
Whenever you cast a legendary spell, draw a card.
Reki, the History of Kamigawa has 3 printings, first in Saviors of Kamigawa (2005). EDHREC ranks it #4,347 among Commander cards. It appears most in Jodah, the Unifier decks (11,396 on EDHREC). It has 2 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.