Engulf says you're 'trapped and cannot move.' Subduing says you 'cannot take actions requiring physical movement.' So, I'm curious, what does that mean? My arms can't move, or just my feet? Can I use weapons? Can I punch? Can I throw when engulfed, clinched or subdued (not in superior position)?
This sounds like something that could come up pretty often, if you make frequent use of spirits and / or unarmed combat.