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

yes, you can create 7 different elemental tiers, but why does the light elemental necessarily have to look like a radiance? They have many forms.
For example, with four wings.

water elementals can be very cool, and the upgrades of these two elementals can differ in form from the unupgraded ones because light and water don't have a constant form.