
Whenever a player casts a blue spell, you may pay {1}. If you do, target player mills two cards.
Drowner Initiate has 1 printing, first in Shadowmoor (2008). EDHREC ranks it #22,665 among Commander cards. It appears most in Ambassador Laquatus decks (15 on EDHREC).
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.