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

yeah, let the mages do it

I agree with the mages (in symmetry, a mage will also be repairing things - mages' houses are made of matter)

The light elementals are cool… interesting (I'm talking about the art above), but who should they be made from? (Maybe from a ghost hero)

Added after 4 hours 12 minutes
by the way, the wisp (or whatever it's called) - well, the little light on the first level of the elemental city, it could work as a light elemental.