This deck is primarily focussed on buffing Devil Dinosaur, where you play cards that allow you to draw cards - either randomly, as a copy, or from your opponent's deck - and screwing up the opponent's day. Armor and Cosmo are slightly unrelated from the deck's purpose, however they are excellent for stopping your opponent's evil schemes (for instance, they have a deck focussing on discard or destroy, and most of their cards have On Reveal effects; or they have a deck primarily focussed on moving; etc.). If things do not go your way, but you may still have the chance to win, America Chavez will be there to save the day. Hopefully.