Intimidating strike dd 3 5
I've done that in the past, and while it's fun, it tends to make the GM angry and have him throw fear-immune enemies at you.
If you fail the check by 5 or more, the target provides you with incorrect or useless information, or otherwise frustrates your efforts.
You also might want to consider Netherese Battle Curse, Brutal Strike, and Combat Panache, which also debuff your enemy without pushing the auto-win button. When I say "low level," I mean "REALLY low level," as in levels 1-3.
I've looked into other Frightful Presence effects on other characters, but the HD limit is crippling.
Optional, but not recommended because retries usually do not work.
Even if the initial check succeeds, the other character can be intimidated only so far, and a retry doesn’t help.