OH and DON'T use a circle . that is very insulting. and pheonix you know how to discribe about almost every demon don't you? :3
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Don't walk the cold and ruthless streets
They drain the life from all they meet
The servants crying underground
Smelling mortal blood like hounds
As you crawl the sewer pipes
Deadly sinners set to strike
As you walk around the bend
You'll be dead right there where you stand
Honestly I can't tell the difference between spiritual entities myself. I've dealt with some pretty powerful entities, and the only difference I can make out is the temperature of their energy. Most of the time the energy is cold, but a few times the energy was as warm or even warmer as a living person's. But I've always dealt with them in the same manner every time. I haven't had a situation where I've needed to ask a spirit to leave. Every time I've encountered one myself it either runs off on it's own, doesn't bother me, or it attacks me or someone else. Usually I do nothing unless it attacks someone, then I kill it off by draining it.