They can thermally detect any living thing around you giving a strong pvp advantage. Like a night vision with wings. Plus they can put you and your allies in stasis and heal you whilst being an ice cube. Decent airborne mount -
If dive bomb at the edge of a ledge or cliff then (if at slight enough angle to not freeze and lose your momentum) you will be sent flying forward at the speed you we’re going when you dived, and you will not lose stamina.
P.S this counts as falling, so you can’t control were your going. Also you will take fall damage so start flying again before you hit the groung