Mage Skill Quest https://irowiki.org/wiki/Mage_Skill_Quest

Energy Coat Quest

Mage Skill Quest
Requirements
Base Level:	None
Job Level:	35
Job Class:	Mage
Item(s) (Consumed):	3 Glass Bead 1 1carat Diamond 5 Shell 1 Solid Shell
Rewards
Quest Reward(s):	Ability to use Energy Coat

Talk to the Great Wizard geffen_in151119 in the Geffen Mage Guild. He'll require the following items in order to teach you Energy Coat:

• 3 Glass Beads - Gift Merchant lighthalzen204159, Gift Merchant prontera10587, Gift Merchant (Lutie 174, 131)
• 1 1 Carat Diamond - Jeweller lighthalzen96110, Jeweler moc_ruins5285
• 5 Shells
• 1 Solid Shell