I was able to successfully evoke and send Orobas by a second or third try from a tarot card that had his seal on it.
I had trouble opening healing and education/clairvoyance spirits sigils last night. The lines blurred, and Sastan may have arrived, there were invisible creatures around my apartment and knocking, so someone was here. However, not sure if I need a circle drawn and quarters opened or not, for better success.
Thanks,
Fuego