- It can be found 20% of the time when opening an Hero Upgrade Chest.
- It can also be gained 5% of the time when you defeat level 50 of Blitz Acres
- It is found 1% of the time on the special chest you may gain from Supply Station
- It can also be bought from the Marketplace for 100 diamonds (Mysterious Store for 70 diamonds)
See rank for further details and strategy