Edit : 😅 oups, edit with the wrong account, original post was with kazrack35
I haven't play mind control for the last past year, so I wasn't sure. I seem to remember that sometimes sleep applied on boss without containment, sometimes not. I figured it was some twist between the sleep application vs the damage application.
The global intent here was to assure a sleep on the boss (if there's no interference betwen sleep and damage on application), but to prevent some kind of abuse by killing them stacking only sleep.
So the first mezmerize would do : damage then sleep the boss
the second, IF the sleep was still active would only apply damage, ie awaken the boss
And also as I said first, I'm mostly okay with mesmerize, this was just a slight buff intended