Assert Authority vs Spelljack — MTG Card Comparison
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.
Spelljack
Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard. You may play it without paying its mana cost for as long as it remains exiled. (If it has X in its mana cost, X is 0.)
| Stat | Assert Authority | Spelljack |
|---|---|---|
| Mana Cost | {5}{U}{U} | {3}{U}{U}{U} |
| CMC | 7 | 6 |
| Type | Instant | Instant |
| Rarity | Uncommon | Rare |
| Set | Mirrodin | Judgment |
| Price (USD) | — | — |
| Standard | ✗ | ✗ |
| Modern | ✓ | ✗ |
| Pioneer | ✗ | ✗ |
| Legacy | ✓ | ✓ |
| Vintage | ✓ | ✓ |
| Commander | ✓ | ✓ |
| Pauper | ✗ | ✗ |
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