[Autumn]

Bluff does not make Snatch spell cost 6m, also it does not play an invocation's sound effect when being used, making it very easy to tell when someone's bluffing.

[Neus]

It doesn't make Snatch Spell use 6M, it makes it use your current Momentum if it's possible to be triggered.

As for the sound effect, that's been corrected in 1.57b

[Autumn]

Sorry to be bumping this, but the sound effect that plays for bluff invocs and the sound that plays for regular invocs is still not matched, to clarify, the sounds played in this clip are the ones that are played during an invoc, ignore the 'turn start' sound effect though please.

http://puu.sh/ph9PJ/bc06d3d8cb.ogg

[Neus]

This should be corrected.