Let's come up with an amphibian race!

Basically, I read all the ideas... can I just say what I liked and what I didn't? The idea for the 3rd level is very interesting (although it's difficult to implement). I'm all for it! I liked the idea of training for diving underwater/ascending. The only BUT is that not all creatures appealed to me... for some reason, I didn't really like the idea of crocodiles (although the "biting in half" ability is cool). Also, turtles don't really work, in my opinion. The main reason for this attitude is that in Heroes, units are more mythological creatures than real ones... well, you can still tie a turtle to myths, but a crocodile? Somehow, it doesn't fit...
P.S. But please don't be offended by my opinion... I'm just saying what I think...