The deck operates in a similar fashion to any other 'Danger! Dark World' deck; utilising the discard function of both archetypes to gain their effects, while allowing for the option of Link summoning a 'Knightmare' Link monster. However, combining this strategy with Spirits adds a more effect-flavourful set of cards to the mix, which can also fill the roles of normal summoning - leaving you to focus on discarding and special summoning the Danger! and Dark World cards - that protect themselves by returning to the hand at each end of round and allow you to reuse their effects again, and again, and again, and again . . . while adding more cards for your opponent to have to choose between when you activate the Danger! monsters' effects.
Side Decks and bonus Extra Deck cards are your preference.