Found this old picture in the plastic case with my medical documents. I don't remember who this character is (I draw a lot of original characters and forgot about them very soon), but I like the design, may be I'll add guy in my game.
Discovering math. functions for damage formulas was one of the greatest things for me.
It's very useful for balancing skills to work in a variety of possible circumstances.
For example if you have a skill that is supposed to work for both mages and warriors: