I considered Common Experiment . Not sure how long it would take to zap. Nightmare also is a wonderful color. I cant choose!!!

Help?!

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Hm, that would be a good experiment for Poltergeists, maybe Common Experiment , but Nightmare is so perfect, if a little cliche.

I really like nightmare endeavors, and you don't see them too much. Though, the Anyu is terrifying! Would be a good fit if you wanted evil spirits.

The color scheme of does remind me of darkmatter pets, how about these :)?

[edit]Edit: Sorry I didn't read the part about your preference over Nightmare pets before I posted this. Notes to self: never post before you have your morning dose of coffee!

If your first choice would be I'd say go for it, everything else probably won't make you as happy as that one.

When I read the pet name I thought of the nightmare ghostly.