Think about it – without special abilities, Heroes 5 will turn into Heroes 3, and everything that Nival Interactive achieved will go down the drain! The game will turn into a mindless brawl where quantity is the most important thing. That's why I don't play Heroes 3 anymore – because 3DO added too many overpowered creatures, especially with the latest expansions, and the game turned into a stupid race for powerful and numerous units! It's stupid and uninteresting. It doesn't engage the brain.
The other factions will remain! If they introduce such a faction, then play as another one. Well, their skill is to counter enemy skills. That's their thing! Before them, everyone is on an equal footing!
By the way, you could reduce the chances of probabilistic abilities of water creatures, and replace the special ability SKILLED ARMY with an ability that shows the water hero on the action bar when and for whom Battle Fury, Luck, or probabilistic creature abilities will trigger.
