Barstone

Barstone is a White Magic spell found in Final Fantasy XI. It can be learnt by Red Mages at level 5. When cast, the spell increases the player's resistance to earth, thus increasing the likelihood for earth-based spells and attacks being resisted. It may be recast every 10 seconds for 6 MP, and, like all enhancing magic, its effectiveness relies on the player's Enhancing Magic skill. White Mages have access to an upgraded version, Barstonra.