Hemlock Wraithfighter

Being used in a freakshow list. Shriek is the obvious answer but I was wondering if anyone goes for other combos with the other roll or just go telepathy for all rolls. (sanctic demonology and runes of battle being the other options)

Telepathy is usually the best choice. Shriek is great + some of the other powers really benefit the fighters nature. As well as the freak shows

Second that.  Telepathy all the way down. Especially in a Freakshow.

Runes of battle might not be terrible for the primaris, with the possibility of getting horrify or something. I'd probably roll 1 on telepathy - if it's good, keep it and roll a second one on telepathy for shriek. If it wasn't good, take shriek and roll the other one on battle. This way you have some degree of certainty that, worst case scenario, you get shriek and conceal/reveal.

Alternatively, there IS merit to rolling both on telepathy, since you get an extra power, and a several work well in a freakshow list.

My dual Wraithfighter list works well. Lots of wins for it.