[Aldric]

For case one, just make that Cutting Ranged attack with no signature (invisible blade for example) and your choice of area, rapid fire or whatever.
When 10 fully geared soldiers fall with arms flying off, heads rolling and a body or two cut in half, you can even look like a little girl with pink hair, but the other soldiers might still run away in fear.

For the second case, roll to Intimidate, and see if you can have any special effects to boost your skill.

And I would never consider Rapier Wit as an example, it's made for some very specific characters and campaigns and it works there, it's not a general example