That adds a whole new level of depth, since now we've got a material to work with and the possibility for [i]other[/i] materials. Where before we had a character that could be boiled down to "dirty coward that fights good and can draw stuff", we've now switched one of these aspects for something that has the golden opportunity to [i]branch out.[/i] Maybe he can experiment with constructs made from crayons, or markers, or paint. Each has their own strength and weaknesses, and each has its own personal quirks!