RTF is a global modification that replaces all towns in the game.

I had an idea to create a gnoll shaman based on the druid, or even a mage/archmage (if you remove everything and leave only the "framework," it might result in a good spellcaster with cool attack animation).

Druids and archmages have legs that are too thick:D Also, I think the archmage is too slow and "unmaneuverable," while gnolls are fast. The druid is a good option; it could result in an interesting unit. As for the legs, I've already reworked them somewhere; here, we just need new models of gnoll paws.