Assert Authority (MRD #30)
Assert Authority is a uncommon printing from Mirrodin (MRD #30), a Instant. Illustrated by Greg Hildebrandt.
Card text
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.
Details
| Mana cost | {5}{U}{U} |
|---|---|
| Type | Instant |
| Rarity | Uncommon |
| Set | Mirrodin (MRD) |
| Collector number | 30 |
| Artist | Greg Hildebrandt |
| Released | 2003-10-02 |
Current price
As of 2026-10-18, Scryfall listed this printing at non-foil $0.33, foil $3.70 (USD). Prices change constantly, so check the live price before buying.
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Legality
| Standard | Not legal |
|---|---|
| Future Standard | Not legal |
| Historic | Not legal |
| Timeless | Not legal |
| Gladiator | Not legal |
| Pioneer | Not legal |
| Modern | Legal |
| Legacy | Legal |
| Pauper | Not legal |
| Vintage | Legal |
| Penny Dreadful | Not legal |
| Commander | Legal |
| Oathbreaker | Legal |
| Standard Brawl | Not legal |
| Brawl | Not legal |
| Competitive Brawl | Not legal |
| Alchemy | Not legal |
| Pauper Commander | Not legal |
| Duel Commander | Legal |
| Old School | Not legal |
| Premodern | Not legal |
| PrEDH | Legal |
| TLR | Not legal |
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