Main Deck.
Not the best deck, especially since it's being kept as "pure" as possible, with a few exceptions being
Elemental HERO Stratos and Vision HERO Vyon, which are excelent searchers and provide good cycling. D-HEROs are exceptionally good at card draw, and because of their broken fusion spell card,
Fusion Destiny, you want to cycle fast enough to summon
Destiny End Dragoon, which is a complete powerhouse, and with its effect, it will be returning to the field after leaving it because of
Fusion Destiny's effect. The deck is pretty self explainatory, and by using
Mask Change, you'll disrupt your opponent's handtraps by supponing
Masked HERO Dark Law. Everything else is self-explainatory.
Extra Deck.
Xtra HERO Cross Crusader should be used for
D-HERO cycling as he can summon
D-HEROs from the GY, good targets being
Destiny HERO Disk Commander,
Destiny HERO Drawguy and
Destiny HERO Drilldark, though the timing is important, as the first two's effect is only activated a turn where they weren't sent to the GY.
Xtra HERO Wonder Driver can recycle your fusion cards, and
Xtra HERO Dread Decimator is a great choice for a finishing turn.
Masked HERO Anki is useful sometimes (and easy to call as most monsters in the deck are DARK), and
Masked HERO Dark Law was already discussed.