Claim the Firstborn (Foil Etched) [Strixhaven: School of Mages Mystical Archive] Human Rogue Assassin for each attacking creature

for each attacking creature

that you hid on the battlefield before you cast Surprise Party

Set: Innistrad: Crimson Vow Tokens Rarity: Common You can use this to represent a double-faced card

Set: March of the Machine: The Aftermath Type: CreatureSpirit — Spirit Rarity: Rare Cost: {2}{B} Whenever Urborg Scavengers enters the battlefield or attacks

Set: Secret Lair Drop Series Type: Legendary Creature — Elder Dragon Rarity: Rare Cost: {2}{U}{U}{B}{B}{R}{R} Flying

Claim the Firstborn (Foil Etched) [Strixhaven: School of Mages Mystical Archive] Human Rogue Assassin for each attacking creatureSet: Strixhaven: School of Mages Mystical Archive Type: Sorcery Rarity: Uncommon Cost: {R} Gain control of target creature with converted mana cost 3 or less until end of turn. Untap that creature. It gains haste until end of turn. "Will! They have a copy of Tales of the Fae here! Want me to read you a bedtime story?" Rowan Kenrith