I found this one while browsing enchanter sites.

While a Pixie Struck/Mesmerized mob will wake up if you attack
it with melee or spells, it will not wake up if you debuff it.

So if you're fighting a mob that's buffed (Rune, damage
shield, etc), hit it with Pixie Strike, and let a spellcaster
hit it a few times with cancel magic. It will not wake up.
You can also hit it with Chain or Binding, though I'm not sure
what good that'll do. One of the annoying things about
charming casters is that they buff themselves. This is a
great way to debuff them when it's finally their turn to die.

I suppose the same could also apply to Lullaby, though I
didn't test that.

--
John H. Kim
kim@...