played a 140 as warlock. 3 elite and a lot of trash around a pylon. 1 yellow elite and 2 blue packs.
killed them both, shield of pylon after their deaths still at 50 %….
you wanted too add some strategical elements to the tower andthe best strat is to ignore all pylons above 140 and that should not be the best way to handle them.
lower the shield of pylons or just delete the shields.