The deck targets its monster/spell/trap to special summon their monsters and send a card of a different type to the grave and get some additional effects off as well and use those monsters to go into level/rank 3 or higher synchro or Xyz monsters and use their spell/trap cards to special, negate, destroy, or change levels.
The adventure engine uses the brave token to allow the effects of the ridable dragon, and wandering gryphon rider to go off, and uses the effect of water enchantress to add rite of aramesir that special summon the token and activates fateful adventure from the deck (which allows you to add gryphon rider from deck to hand and equip rideable dragon to the token).
The DPE engine allows you to summon Destiny Hero - Destroy Pheonix Enforcer and use his effect to destroy your opponent's cards ( at a cost of destroying one of yours) and weaken your opponent monsters for every hero in the grave and if he were to be destroyed special summons a destiny hero from the grave including himself. As a bonus Destiny hero - Dasher during the draw phase if you draw a monster you can special summon that drawn monster without cost (but you can only do this once) and if you have no cards in your hand you can banish Destiny Hero - Celestial and one other Destiny hero to draw 2 cards.