So, the idea of Zag P3 is you have one strong hero unit, but the drawback is that her mass frenzy only applies to her and her summoned units… except that I just noticed she doesn’t actually benefit from mass frenzy at all. So there is literally no point to using it unless you just called in a roach drop or summoned hydras.
Just a PSA.
(There have been bugs pretty consistently with prestiges every time one unit gets swapped out for another, whether it’s swarmlings or Karax upgraded carriers or what-have-you. I suspect this is a case where Zagara was swapped for Apex Zagara and nobody remembered to update the definitions in code)