This EX was done very well. Great, dramatic pose! I'm happy to see a quick-speed metal mega, versus Aggron and Metagross' 4-cost megas. I'm almost sure it's mega is going to have a 2 cost attack, but if it's 3, it's still an improvement.
The attacks here are quite underwhelming, but it's got some good early game attacks while you try to get his mega in play. While you're setting up Bronzor/Bronzong you boost his second move, no harm in 110 for 2. Anyone know if it counts when you evolve a pokemon? It's technically placing a pokemon to the bench, just on top of something on the bench already. Move two is trying to midigate the turn-two low damage moves with steel wing. You can get up to 50 damage reduced on your first turn (if you go second) by using steel wing + shield + reverse valley, which could save you loosing critical HP that keeps him in another turn. two cost retreat may work well when you have max potions and Bronzong to help. (I also assume that it's mega will retain the retreat cost)
I guess we'll see soon what his Mega has to bring to the metagame!