anyone found a limit to its power? im at 78 and still going

I read about this and it seems EXTREMELY over powered. I don't have it yet, but I will soon. Got side tracked with the Aetherium quest thing. Does it tell you the number on its enchantment? Seems like you could eventually kill everything in 1 hit....

yes it does. it says x undead killed. your told it resets every dawn but thats not true