Played a few iterations of aggro in my run to EXP masters and landed on this list to bring me to the finish line. Charge is good against control and flying goes over the top of most midrange decks. I don't think permafrost is very good in the format outside of tempo beatdown, but it's great here. Hard to find more useful ways to spend one power when you're in debt a lot.
Speaking of, Feral Serpent's aegis can be matchup dependent, as well as whether to proc plunk. Lots of games were won on the back of playing out my hand instead of maxiimizing plunk value. Rampage has been pretty great at finishing games out of nowhere with double damage dudes, as well as protecting units on attack for tempo. I'm guessing the numbers can be played with a bit, but it ran pretty smooth as is.
Thanks for reading and good luck in your games.