Enchant stone is needed to empower the items like weapon, helmet, etc. You can get it from Elite Battle and buy it from Enchant Shop.
You need to know there is certain amount of enchant stone to evolve it perfectly.
Normal stone needed:
Level 1 ~ 180
Level 2 ~ 480
Level 3 ~ 900
Level 4 ~ 2000
Level 5 ~ 3500
