Box of Mystery

This is where you Summon Minions to add to your party.

Summoning a Minion costs 100 Embers, or 10 Gems.

When you use gems to summon minions, they will be gemmed minions. Gemmed minions will give you and your opponent more gold for winning a match. Using gems also gives you a chance at summoning a Mystic minion. Mystic minions also award you and your opponent more gold for winning a match, and they can also be sold on the Steam Market.