What all has he done with them? I'd like as many examples as possible from the comics. Small and big things. I know he uses his mutant tech powers more than anything, but I'd like to know what he can do with his mystical abilities. 
 
Thanks in advance.

Awww man. Come now! Surely somebody has the information and is willing to share it. =(

" @Ultimate Joker: Not many has been shown. Aside from the spell that he casted twice using the soul from fallen partners to bring forth demons. He had a magical battle with Illyana Rasputin AKA Magik, where he was able to control his abilities in a magical realm. He also was able to enter an state much similar to the astral plane, but with magic instead of psychic abilities. He also combined his magic with technology to escape from an alternate reality he was trapped with Storm. There are more examples but I can't seem to remember. Hope this was helpful. "

@Ultimate Joker: Doesn't Forge only use his spellcasting talent in emergencies?

Seldom, since using them in the past has cost the lives of living people.