Stamp Authority 1st Ed ARC1st then your next Guardian attack

then your next Guardian attack this turn gets +3POWER and "When this attacks a hero

Each Deck Box can hold up to 80 standard size cards in Deck Protector sleeves

KaiSa Daughter of the Void Signed Alternate Art 299*/298 Riftbound

Thermo Beam 022/298 Riftbound

Stamp Authority 1st Ed ARC1st then your next Guardian attackWhen 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.