And Pupitar too. Don't forget him.
This sounds like it might be cool. Of course, I'd have to see that picture for myself, but...A Ghost-type spider Pokemon is found in caves. It is dark gray with blue spots and multiple light grey eyes. It has a feint light blue mist around its abdomen. The source doesn't remember the spelling of its name, but says it was something like "Apparachnid." He thinks it may have an evolution.
If the whole theme had an eerie accordion in the background, that would be amazing. Silly French.Team Flare's signature music has an eerie accordion sound to it in the opening sequence.