Ancient Armor Enchant Crystal-R-grade

Enchant success rate increases by 10% of Enchant basic rate.\nFailure to enchant does not affect the weapon's enchantment level.\nWhen enchanted, increases Physical Defense by 2 for R-grade armor and accessories. It is greatly increased starting at +4. Can be safely enchanted to +3. From +4, the enchanted armor's HP also increases according to the enchant level. Cannot use on weapons above +16.