When Heart units cast their Ability, your team gains stacking Ability Power for the rest of combat.

Every 5 seconds, Spellslinger's next attack instead fires a magic orb at a random target, which explodes for 50% Ability Power as magic damage. Spellslingers gain:

The Underground must sneak through the sewers after each player combat and crack 10 locks to open a vault. When the vault opens, you may choose to take the loot now, or attempt another heist for even better rewards.