Wasp enemies

I am playing a spectre build with Powered Zealots. Whenever I encounter wasps they are so tanky that I have to imagine the wasps hitboxes are constantly avoiding the sparks or something. A white wasp will most of the time be tankier than any other rare mob. A rare wasp will often take something like 5-10 times longer to kill than a map boss.

the wasp enemies are not being damage by pz's spark hability, annoying bug!