When using dread shade, it will constantly cycle between giving you the buff and not while standing directly in the circle. Imagine flicking a light switch on and off, you can see this happening by opening the character panel. You will see your spell damage/armor go up 60% and then drop off, it will cycle this the entire time. Unsure if this is also effecting minions as well when using dread shade.
Character is a level 86 Necro with only Dragonflame Edict, Woven Flesh, Logi’s Hunger, Ribbons of Blood and Arboreal Circuit as my uniques, with no legendaries equiped.
Sreenshot of Dread Shade Points
Thanks!