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

What value does dividing magic according to the "lore" of parts 6 and 7 bring to the gameplay of Heroes 5? There aren't that many spells to begin with, and it's impossible to do this without terrible workarounds.

And what value does dividing it into water, fire, air, and earth bring? - also a bunch of workarounds and shuffled magic, and at the same time, nothing is made more interesting than it was (for example, these same immunities, etc.) - the division into schools in Heroes 5 is quite specific - not by elemental affiliation (as in Heroes 3), and not by racial affiliation (as in Heroes 4), but by action - damage, summoning, buff, debuff, and if you're going to divide it into elements, then why were darkness, light, and primordial excluded (the latter can still be excluded by losing it in the other six schools, but that's just my opinion)

Added 6 minutes later
I agree with the small number of casts; then, instead of 4 schools of 12, there will have to be 7 schools of 9.