Grand Archive TCG: Set 4 Mercurial Heart Alter Edition Booster Pack

The story of Azoth continues in Mercurial Heart! Join the Grand Archive champions as they uncover ancient secrets, battle against the darkness within humanity, and attempt to restore peace to the fragmented world. The fate of both humanity and automata rest in your hands.
Mercurial Heart Alter Edition is a reprint set that adds 20 unique cards, alternate art URs and brand new CSRs to collect!