
Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.
Assert Authority has 1 printing, first in Mirrodin (2003). EDHREC ranks it #12,344 among Commander cards. It appears most in Ovika, Enigma Goliath decks (1,550 on EDHREC).
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.