Foe Throw Vs Grappled Enemy

[Hugh Adams]

So below are the specifics for the Kineticist ability know as Foe Throw
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Foe Throw

Element(s) aether; Type form infusion; Level 3; Burn 2
Associated Blasts telekinetic
Saving Throw Fort negates; see text

Your telekinetic blast can throw a Large or smaller creature instead of an unattended object; you can increase the burn cost by 1 to affect a creature of a larger size. If the creature you attempt to throw succeeds at a Fortitude save, it negates the blast entirely.

Otherwise, if your blast hits, both the thrown creature and the target take the full amount of damage from your telekinetic blast, and the thrown creature falls prone in the last unoccupied space along its path. If your blast misses, the thrown creature can choose to occupy any space within 30 feet of the target, it doesn't fall prone, and it takes half the normal amount of damage from your blast. The movement doesn't provoke attacks of opportunity.
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I have 2 questions,

(1) what happens if you use the ability on an enemy whom is grappled by someone else and held by them.

(2) what happens if Foe Throw is used on a target creature that is attached to a mount by a harness that prevents being dismounted?

Also for a bonus question

(3) can you target an empty space with For Throw?

[Fuzzy-Wuzzy]

(1) Being grappled prevents you from moving yourself but does not prevent outside forces from moving you, so it works normally, thereby de-grappling them I suppose. The GM could houserule an opposed Strength check instead, but it'd be a houserule.

(2) The GM takes a wild guess at the effective Strength of your telekinetic blast and makes a Strength check vs the break DC of the harness (which they may also have to guess). Either it breaks and the target goes flying, or it doesn't and... um... I guess you have to consider the target and its mount one creature at that point and determine whether you can throw their joint mass?

(3) Technically no, since it's just a spiffy TK blast, and TK blast says you target "one foe" with what you throw. But I see no reason a reasonable GM wouldn't allow it.

Hope that helps.

[Hugh Adams]

Well, that's the point for point (3), it is not actually a foe, the description just says "the target", it does not actually specify a foe, or even creature.

[Fuzzy-Wuzzy]

Foe Throw specifies "you can use your telekinetic blast to..." so you have to look at the description of telekinetic blast, which says "You throw a nearby unattended object at a single foe as a ranged attack." Just because Foe Throw overrides the "unattended object" part doesn't mean it overrides anything else.

[Hugh Adams]

Hmmm, that seems fair enough, does that mean then you cannot throw a foe at a wall?

[Fuzzy-Wuzzy]

By strict RAW it means that, yes. But I'd expect almost all GMs to rule that you can do it anyway.

Alternatively, claim to be really, really mad at the wall. ;)