The main focus of this deck is to poison the opponent and keep them poisoned.
To this end, the deck has multiple means of poisoning opponents, either through tag-team Muk, Garbodor, or Koga's trap.
Dragalge, Toxicroak, and Virbank City Gym to ramp up the damage and Muk, (the other) Dragalge, and Dust Island to keep them poisoned.
Finally, Tag-team Muk to do the heavy lifting thanks to his self-healing and GX move.