Draining Infusion works on creatures that share a subtype with the kinetic blast used. However, how does this work with Aetheric blasts?
As far as I know there are no aetheric subtypes, so does that mean this doesn't work at all with aetheric blasts?Elemental Grip has the same problem.
Mark has let leak that aether elementals will feature in an upcoming bestiary. Whether there will be any other creatures with such a subtype we don't know yet.
Here is a link to where he mentions it once, I feel like he's brought it up somewhere else as well.