It can be an annoying enemy to face, as it can use Sunbath to restore HP to itself and allies if attacked by Magic. It should not be too difficult to defeat however, and the enemies it attacks with usually are not powerful enough to make the enemy party a threat, even with the Devoahan's healing abilities.
The sprite that is shared between Devoahan and Aspidochelon was used and modified for some of the Salmando class dragons in Bahamut Lagoon. Namely, the White Warrior and Poison Warrior. The Earth Slayer, Green Slayer, Pontilac, Giygas, General, and Iron Eagle are all heavy modification of the original.