Mutate spells as actual spell weaving spells (Opinions wanted)

[fleet hemlock]

Now I don't mean just have a trainer that adds the "Mutate" cards. An example of this is if you are a Life wizard and you weave into lets say ice, you then can have your Forest lord turn into the Ice Yeti version and do ice damage instead (which exists already as TC so no new animations needed for probably most of these). I understand that there are certain tweaks that would need to be made to said spells to either fit the theme of the school or just change the damage.