This Base-Neo deck is intended to stack a bunch of energies onto 1 of your Opponent's Pokemon with Dark Magneton's Magnetic Lines, and then Gust of Wind it out and yeet them all back into your opponent's deck with a Fling from Dark Machamp.
Once your opponent doesn't have much energy left around, Dark Machamp can Mega Punch anything else to death with increased potency with some special Darkness Energies attached to it.
Since both components of the deck are dark type, there's a lot of synergy with The Boss' Way and Rocket's Hideout to benefit them both.