Upgrading 380 level Items with Jewel of Guardian

How to Upgrade
Guardian options (pink) can be added only to items with 380 level requirement. To upgrade your item put it in the chaos machine with 1 Jewel of Guardian and 1 Jewel of Harmony. All types of items have a different "pink" option

Pink Options

Helm SD Recovery Rate increase +20 Defense Success Rate increase +10 (PvP)

Armor  SD Auto Recovery Defense Success Rate increase +10 (PvP)

Pants Defensive Skill +200 (PvP) Defense Success Rate increase +10 (PvP)

Gloves Max HP increase +200 Defense Success Rate increase +10 (PvP)

Boots  Max SD increase +700 Defense Success Rate increase +10 (PvP)

Weapon  Additional Damage +200 (PvP) Attack Success Rate increase +10 (PvP)

FAQ
Q. Where do I find Jewel of Guardian?
A. Jewel of Guardian drops in the Land of Trials. To enter the Land of Trials, your guild must've won Castle Siege event and control the castle.

Q. Where do I find Jewel of Harmony?
A. Jewel of Harmony can be obtained by refining Gemstones in Maya Tower, through Elpis NPC.

Q. Where do I find Gemstones?
A. Gemstones can be found mainly in BC, DS and Kanturu/Maya. Seems the best drop is in Maya Tower.

Q. Where do I refine Gemstones?
A. In Maya Tower trough the Tower Core Gate, by Elpis NPC. If Maya and Nightmare haven't been defeated, the gate might be closed.