But if ya've got the talent, it actually doesn't take much--adding a drop of blood as an offering to the basic summoning circle and speaking an incantation ta convey your intent is enough. Like just words that help ya focus on what ya want. In this case, I wanna push demonic presences back through the other way, so...

[Checks for a new imp to pop. Once he spots one he, pricks his thumb again with a sharp pin he's got wedged between his fingers and murmurs a sutra, pressing his thumb to the circle--it glows white, then red, then the hole opens again. The imp screeches a mocking sound--ignoring the circle--it's only after Pink throws the pillowcase over it and poofs it that the smoke from the imp gets pulled through.]