
Counter target spell if you control more creatures than that spell's controller.
Unified Will has 1 printing, first in Rise of the Eldrazi (2010). EDHREC ranks it #18,782 among Commander cards. It appears most in Edric, Spymaster of Trest decks (1,050 on EDHREC). It has 1 official ruling.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.