Very well.

[Without further ado, Merciless takes out her knife and nick her finger. A copious amount of blood flows out... and flows and flows, far more than should be from a wound like that, more than should be in a human body. It gathers into a strange glyph on the ground. An oppressive feeling begins to emanate from the glyph, like Death itself is resting its icy fingers upon your neck.]

I will have to do this at a few spots to drive the rioters away.