The rules state if you attempt and succeed a trip attempt against a flying NPC the NPC loses 15 ft of altitude. If the NPC is simply hovering at ground level and is tripped will that cause them to fall to the ground prone?
If it does, would standing provoke an AoO or would the NPC be able to simply "float" back to a standing position with their weapons at the ready instead of having to roll over, get their feet under them / get to a knee, turn back around, etc.
If not, does the fly spell effectively grant the subject a fly speed and therefor allow them to take a 5-foot step during flight? If so, would it be possible for the flying NPC to be tripped, fall prone, and simply fly straight up 5 ft to escape their attacker(s) without provoking their death?
|Some call me Tim|
Kinda of a shame, actually... It limits in-game options and makes it harder for people to realize that "Trip" is just the name of the mechanics, not necessarily an actual trip.
It is an actual trip in PF. As SCMT just posted,"Some creatures—such as oozes, creatures without legs, and flying creatures—cannot be tripped."