Spells: Blue necro outmezzing me

[Ropethunder]

I tried to mez a kobold priest in solb (level 39-40) as a very well geared (231 cha) enchanter at level 35. Mezz resisted every time and I died a horrible death.

Our necro, level 32, 70 cha, was able to mezz it just fine.

Should a level 32 necro even be able to land that spell? Should mine be sticking (I did tash!).