How does this achievement work? I've been at this for nearly an hour trying to figure out how to kill things while they are stunned, but they seem completely invincible while the effect lasts. My click damage is CLEARLY enough to kill them, based on taskmasters eating through their health fast enough to leave them near-dead by the time they reach my formation to get stunned, but when I actually click them....nothing. Numbers don't even appear, or it's the "Tehe" texts and such. Gwen's hounds also spawn, explode, and do nothing.

Similarly, Gwen's hounds don't deal damage enough-so to kill anything even with Blinding Lights turned off. Supposedly, they do 15x my current DPS, and yet if I can kill an enemy in 5 seconds with DPS, the hounds will explode and deal almost no damage to the enemies around it.

There was a bug with being stunned preventing damage over the weekend.

Should be fixed now if you reload the game.