![Stamp Authority [CRU028] (Crucible of War) 1st Edition Rainbow Foil Magic Player Rewards 2006 Set: Strixhaven: School of Mages](https://cdn.shopify.com/s/files/1/0615/8624/3793/files/42fcc3d2-0e45-4e02-b5a2-f92ec2a0e812.png?v=1773795692)
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Set: Strixhaven: School of Mages Art Series Type: Card // Card Rarity: Common
"For years
Set: EX: Crystal Guardians Type: Fighting Rarity: Uncommon Retreat cost: Colorless
Unique 2-level fold-out design
Set: EX: Dragon Frontiers Type: Darkness Rarity: Ultra Rare Retreat cost: Colorless
Stamp Authority [CRU028] (Crucible of War) 1st Edition Rainbow Foil Magic Player Rewards 2006 Set: Strixhaven: School of MagesSet: Crucible of War Edition: 1st Edition Finish: Rainbow Foil Type: Action Subtype: Aura Rarity: Majestic Class: Guardian Cost: 3 When Stamp Authority enters the arena, if you have 2 or more cards in your pitch zone with cost 3 or greater, your hero gains +1 [Intellect] until end of turn. While Stamp Authority is in the arena, attack action card effects do not trigger when they hit. At the beginning of your action phase, destroy Stamp Authority.