Earth daeva. An evil spirit who casts baneful spells to sate its yearning for human life.
An inverse of Djinn, Dao is the higher level Earth Elemental. As such most of its attacks are Earth-related, such as Vulcan Lance, a single target Earth attack, and Gaea Strike Lv. 3, a multiple target attack.
At this point of the game, the player would have access to Air gemstones such as Djinn Amber and Sylphid Topaz, equip them to Blunt-type weapons. Use Air-type attacks and magic (such as Luft Fusion and Thunderburst) if possible.