Play the usual TeraZard line, evolve to put 2 Fire on Active and 1 on a backup Mander, take some knockouts, then before the first TeraZard gets KO'd (or if you have other ways to keep 4 energy in play, which Zard/Pidgeot should be able to do), evolve to a MegaZard and take out any opposing megas by dealing 380 damage
What's In The Box Back To Buy Box This product is a factory-sealed box
Hushbringer Capable of utterly hosing an opponents deck, Hushbringer can be an absolute menace in Commander
Pikachu ex 107 (with the white background) can use Pika-Pika Parade to search through the deck for any number of basic Pokmon and then use them to fill up the bench
So, rather than repeating myself again here, I'm going to give the award to the equally deserving Grief
Traditionally, a Pokmon cannot evolve on the first turn it is put into play, nor can it evolve a Pokmon that was just placed down on that same turn