Darkness Dragon World on the cheap!

 Here is a very quick way to build a really strong deck from just 2 Darkness Dragon World trial decks and a few cards from Booster set 4!

Buddy
Black Dragon, Death Gracia
Monsters
3's 2
Purgatory Knights, Satan Force Dragon x 2 td
2's 8
There is Only Death, Dalleon x4 td
Black Dragon, Dividers x4 td
1's 12
Black Dragon, Tarandus x4 td
Black Dragon, Decipience x4 td
Black Dragon, Death Gracia x4 td
spells 23
Death Damage x2 td
Sudden DEATH! x4 td
Black Revenger x2 td
Vampire Fang x2 td
Midnight Shadow x2 td
Abyss Symphony x2 R bt4
Lunatic x3 u bt4
Death Shield x2 u bt 4
Black Dragon Shield x4 c bt4
impact 2
Demonic Strike Arts, Death Requim x2 td
items 3
Evil Death Scythe x3 R bt4

Your main strategy while playing this deck will be to use Lunatic to keep your opponent hand size and gauge low while using your Black Dragon's Spectral Strike to to clear their field of monsters while still dealing them damage. Just remember that you don't have to use Vampire Fang every time you draw one try to save them for when you need to cast your monsters or spells also don't be too afraid to charge them!