Let's come up with an amphibian race!

I feel sorry that I can't support you in this direction; maybe it's a great idea, and I'm just not understanding something, but with all my thoughts, I don't want to see some new third world (underwater level) in Heroes. I do like the idea of creating a faction, like the swamp faction from Heroes 3... But in the description of the monsters, it's noticeable that they turned out to be quite powerful...
P.S. Sorry... but continue, maybe it will lead to something...