Aww, somebody beat me to this. T_T
Seaking
In a prerelease, 1 turn can mean the difference between a win and a loss. Endure deals decent damage and can let you survive for an extra turn. Stab Through can donk your opponent if you're lucky.
Medicham
This thing has synergy with itself. And it has synergy with Plusle. 'nuff said.
Sandslash
Awesome Poke-Power. It also can poison and paralyze in the same attack. Awesome.
Primeape
The top card of your opponent's deck may be bad, but you can deal some serious damage with Primeape's first attack.
Breloom
40 for 1 energy on an Uncommon in Limited? I'll take it!
Skarmory FB
Has decent HP for a basic, so it can take a hit. Silver Wing can be a nice disrupting attack.
Mawile
T1: Turn Around and Stand By.
T2: Swallow.
Repeat.
Dodrio
Half decent attack, but fantastic power in Limited.
Dragonite FB
This set has a ton of Pokemon-SP, so Mach Blow can OHKO or 2HKO all of them.
Chatot G
Awesome disrupting Power and a good attack.
Gabite
Healing for nothing is awesome. Preventing a retreat is even more awesome.
Lickilicky C
Double the Energy each turn? Drawing and decent damage in a single attack? This is easily the best Common in this set.
Charizard G
It's flippy, but its first attack can be deadly.