Befriend your perfect monster companion—if you meet their conditions, they’ll come to your aid from outside the battle! The Companion mechanic will feel familiar to Commander fans and add a fresh twist to two-player formats. Battle your way through the plane of Ikoria with monster-themed mechanics like Mutate—stack your creature cards for a mutated monster with the type of one and the abilities of another. Each Collector Booster Box contains 12 packs per box (15 cards & 1 token per pack)