So my upcoming campaign is going to be based on Dungeon Crawl Classics with one big change. We're not going to use wizards. Instead, we're going to have scientists that will work like wizards in a lot of ways. Instead of spells, they'll have technological gadgets that will need to recharged. (This idea is taken from Warriors of the Red Planet.) Any ideas on how to map casting rolls and spellburn onto a scientist class?