Mizzix of the Izmagnus [Commander 2015] Rivals of Ixalan Prerelease Promos sacrifice Handcuffs and that player

sacrifice Handcuffs and that player sacrifices three permanents

Set: Archenemy Type: Creature — Shapeshifter Rarity: Rare Cost: {2}{G}{G} Changeling (This card is every creature type

Set: Planechase Anthology Type: Creature — Dragon Rarity: Rare Cost: {4}{R}{R} Flying

"But I signed nothing

Mizzix of the Izmagnus [Commander 2015] Rivals of Ixalan Prerelease Promos sacrifice Handcuffs and that playerSet: Commander 2015 Type: Legendary Creature Goblin Wizard Rarity: Mythic Cost: {2}{U}{R} Whenever you cast an instant or sorcery spell with mana value greater than the number of experience counters you have, you get an experience counter. Instant and sorcery spells you cast cost {1} less to cast for each experience counter you have.