Simulation tickets, or Sim Tickets, are a great way to earn rewards without spending all your time in Campaign battles.

The Multi Sim option only unlocks once 3 Stars have been completed in a Campaign node. Once the 3 stars have been achieved, you can simulate up to 5 battles and earn the available rewards. 

After spending your 5 sim tickets, you’ll need to wait for the cooldown to reset, or pay Crystals for an additional 5 plays.