As of the 6/21/2010 patch, there is no longer a level restriction in Riverne - Site B01. The entire mission can be soloed/duoed by most jobs at level 75+. Please be aware that there are now high level enemies (VT-IT to lv 75+) in these areas so caution not to cause aggro is still advised.
He alternates between flying and standing every two minutes.
On the ground, his attacks are physical; in the air, they are earth elemental and ignore Utsusemi, Invincible and any form of physical damage reduction, including Sentinel. His air attacks do 280 damage minus Shell and any resistance; kiting may also reduce their damage.
He will regenerate to full health if your party wipes.