Number of casts: 2. Difficulty: Ridiculously Easy. Some projects take months, others take minutes. A friend of mine needed a Warp Lightnnig Cannon for her Skaven army to use in defending a castle. Rather than drive all the way to Dayton and cough up $25, I cobbled this piece together instead. It worked out well, and is serving as a trial for other "steam-tech" pieces.