It can apply a maladict to hitroll and damroll.

It can cause a lasting feint effect (random on any attack).

It will also normally feint 2 attacks the round after you cast it, as Scrimbul says.

It works best against the low int races (I'm pretty sure). Don't get put off by the fact it also makes you miss your melee attacks. Yours generally don't matter, and your servitors are not affected by the spell.

However, DO BE AWARE that it is an area affect spell and that means you can't use it when surrounded by nasty mobs.