|Found:||Bosses, Rewards, Chests|
- x1-3 in a Silver Chest
- Beating Bosses (mostly on epic stages)
- x3 in an Enchanted Chest
- x1-25 from Fusion Fighter's Blitz
- Occasional Daily Reward
Fusion stones are used alongside 25,000 gold to fuse 2 armors of separate elements together.