Equipment used by your characters can be upgraded to improves its effectiveness.
When you first receive any equipment it begins at level 1. You can spend resources and gold to add experience points to your equipment. As you do this they will increase in level. As their level increases:
- Weapons do more damage
- Helmets give you more hit points
- Armor increases your defense value.
The maximum level for equipment depends on its class. C-rank, B-rank, A-rank and S-rank equipment has a maximum level of 20, 30, 40 and 60 respectively.
Once an equipment has reached it's maximum level it must be evolved (if possible) to get any stronger.