Hmmm...
If you have an Ithorian Commando with a high Brawn, ranks of Resilience, and ranks of Physical Training, it would appear that the Ithorian Bellow could be very useful at dropping Reflect-happy Force-users.
Anything with the Blast quality would work against Reflect-happy Force users.
Heck, concentrated barrages of blaster fire in high volumes would work. It certainly did for the clone troopers during Order 66, as Ki-Adi Mundi's corpse will attest to.
Pshaw, that corpse is keeping mum!
Get it? Mum? Mummified from the cold and wind?! Ha ha ha ha...hah...
I'll see myself out.