Assert Authority
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.
Instant
standard:
not legal
future:
not legal
historic:
not legal
gladiator:
not legal
pioneer:
not legal
explorer:
not legal
modern:
legal
legacy:
legal
pauper:
not legal
vintage:
legal
penny:
legal
commander:
legal
oathbreaker:
legal
brawl:
not legal
historicbrawl:
not legal
alchemy:
not legal
paupercommander:
not legal
duel:
legal
oldschool:
not legal
premodern:
not legal
predh:
legal
High - Low
