Dust it on with a powder brush and then drag a wet butter knife across it. It looks like you're making a scalpel incision. Dust it on and then use a water spritzer bottle to spray it and it'll look like road rash. The possibilities are endless with Graftobian Magic Blood Powder.
It was quite appealing. I applied it to my skin and it took a couple of sprays of water to turn into blood. But once i applied more of the powder i sprayed once and it instantly turned into blood.