What tools do modern professional astrologers use to draw up a horrorscope for a client?
do they still rely on pen and paper or do they now follow the computer age and just use astrology software that pretty much does the job?
"Professional astrologers..." Hehe. That's funny.
Imagination and nonsense are the only tools needed. Some have programmed computers to provide the nonsense, but you know what they say about computers...garbage in, garbage out.
A vivid imagination.