• Assert Authority (30) [Mirrodin]
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Assert Authority (30) [Mirrodin]

$0.35 CAD
$0.35 CAD
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Description

Set: Mirrodin
Type: Instant
Rarity: uncommon
Cost: {5}{U}{U}
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.