Provoking a ghosty allows you to see it's position.
There seems to be a couple frame-perfect issues with stasis that I'm bumping into quite often. One is that, if you put an enemy into stasis and with the next hit you kill it (taking it out of stasis) if you get the frame just right, the enemy can spawn projectiles the frame it dies. The other one seems to be in a similar vein to the shadow-clone-being-able-to-hit-things-but-not-you region, where it's possible either to shield cancel a 2H attack or to take a swing at something just out of range which is in stasis, to have the stasis break as if you hit it.
Still not quite ready to give full feedback but I can say a full support skills run is pretty fun so far