Brock Buster

This Deck needs some versatile thinking, as you can use Brock with both Onix for a quick sweep on the 4th turn (starting second in a match) and surprise your opponent with a Golem fully set up and ready to roll, as well as baiting/ stalling your opponent with a Marshadow trap to tear down their best pokémon (I find it extremely good against Pikachu that gets one-shotted thanks to weakness). I run both kind of Golem as I find them useful in different circumstances, one capable of up to 160 damage thanks to Giovanni and the other one very resilient, and Mythical Island Graveler as it's easier to attack with its 2 energy move to put pressure waiting for evolution.

Variations include Promo A Mankey or wichever you like, togheter with Mythical Island Primeape