YellowHat's Revenge
Sweet.
I like all those moves at lot, I just didn't like the fact that other Pokemon can learn them as well. But, it happens. :/
Well, in their respective gens, they WERE signature moves. In the third gen, NO other Pokemon could learn Leaf Blade, Blaze Kick, and Muddy Water. Here's a list to prove it.
http://bulbapedia.bulbagarden.net/wiki/Signature_move
And you're correct that Snivy and Oshawott's moves were not unique to them. I didn't know that's what you meant at first.