Personally, I feel the same way - I would go the "new spells" route. But I know that a lot of folks are much less picky about aligning mechanics with concept, and for them a simple reskin is the obvious fix.I realize you suggested this as a matter of expediency, but it just makes me shudder - nails on a chalkboard, etc. Things that are supposed to be different things should be ... different. It's like adding food coloring to vanilla ice cream and claiming you've created a new flavor. And I freely admit this is a highly subjective reaction.