Water is tough on
Zoingots as it is on Ruks. Having the bouyancy of a large rock is not conducive to long periods under water. If you ever encounter a place where you'll need to hold your breath for a long time you'll automatically cast it thereby saving yourself from drowning. Since it is a situational spell, you do not need to issue an order to use it but it will cost 3 spell points when you cast it. Also since it works by creating a thin pocket of air around you don't cast it in rivers or the ocean as it will be swept away and you'll expire.
Xoxmox's