( zoom ... )
Back cover ~says for use with Core 3 , uh-oh.
Dybbuk looks interesting.
Summon to big battle, after things start dying.
Speak with Dead at-will, until it figures things out.
Nearly Moon Druid 20 's worth of temp hit points,
over and over, until everything is dead.
Oh and it's CR 4.
oops --- a little bit of Berberlang popped in there. Same idea tho'.