Shellga is a Green Magick spell that casts Shell upon the whole party. It can be bought in Balfonheim after the Pharos event for 9,900 gil. Its license, Green Magick 7, costs 105 LP. In the International Zodiac Job System version, Shellga is a White Magick spell, its license being White Magick 12 that costs 110 LP. The spell itself cannot be bought, and only found in the Great Crystal in Giruvegan. Three classes can use it: White Mage, Monk, and Shikari. Monk must acquire the Esper Chaos License and Shikari the Esper Cúchulainn.