Cleon
Legend
Well, we could swap Combat Reflexes for Imp Init, which is sort of stealth-related and certainly useful in an ambush.
I don't know how the krenshar's scare is related to befriend here. Tell you what, I'll roll a die below. 1-2 for racial, 3-4 for typeless. Oh, and Befriend seems like it should be Su to me. EDIT: the die says racial bonus.
Just add pass without trace as an SLA? Or just give them a druid's trackless step?
It reads more like Trackless Step to me, so I was going to go for an adaptation of that.
How about...
Traceless Path (Su): A hyenawere in hyena form can move through any kind of terrain while leaving neither footprints nor scent, making nonmagical tracking impossible. It may choose to leave a trail if it desires.