D&Dtools1

While this spell is in effect, you have a special connection to the arcane forces that animate constructs.
For 1 round, you can deliver sneak attacks against constructs as if they were not immune to sneak attacks.
To attack a construct in this manner, you must still meet the other requirements for making a sneak attack.
This spell applies only to sneak attack damage.
It gives you no ability to affect constructs with critical hits, nor does it confer any special ability to overcome the damage reduction or other defenses of constructs.