I'm not submiting any movepools, but I have an evolution method that I'd like to share with you guys. Feel free to use it if wanted.
In gen IV, we got the full Porygon line, which is up to date the only family to evolve twice by trading attached with some item. I propose Pyroak line to be the first one to evolve by leveling up with certain moves known twice. Something like:
Embirch -> Level up with Bullet Seed -> Flarelm -> Level up with Iron Defense.
The first evolution would be to give emphasys on the more developed cannons that Flarelm has. Similarly, Iron Defense would do it's thing by demonstrating how Pyroak's armor gets harder upon evolving.
IDK, just throwing my two cents.