Snorlax is extremely an good tank and early attacker that can be paired with so many different pokemon. A pairing with Luxray makes use of both snorlax's high hp stat and the fact that the opponent simply cannot ignore the 100 dmg threat. Once snorlax goes down, the energy attached gets discarded and now Volkner is online. Luxray's Volt Bolt can hit anywhere on the field so we don't need to run sabrina or cyrus. Iono and Poke Comms are very important for any stage 2 deck. Rocky helm helps with putting pokemon into lethal range and deters aggro decks. The weakness of this deck is the same with every stage 2 deck and that is bricking, but thanks to iono and comms plus having no ex pokemon to give our opponent two points, you are not losing much from being behind in tempo. Wasted energy on snorlax will still be valuable due to volkner.