This deck specializes in damned if you do, damned if you don't. When Dark Tyranitar is in the Active Spot, you put a damage counter on each of your opponent's Benched Basic Pokémon in-between turns. If you have a Dark Ampharos in play, your has to put 2 damage counters on 1 of their Pokémon each time they evolve it. By utilizing Ancient Technical Machine [Rock], you can de-evolve your opponent's Pokémon so that they are forced to take damage from Sand Damage and Darkest Impulse. Not only that, it also punishes decks for using Rare Candy to evolve into their Stage 2s, essentially stranding them if they can't keep finding Rare Candies every turn.