My favourite DARK Deck
My 2 cents:
Tribute monsters (6x)
Jinzo (1x)
Patrician of Darkness (2x)
Dark Master - Zorc (2x)
Berserk Dragon (1x)
Non-tribute monsters (17x)
Kycoo the Ghost Destroyer (2x)
Night Assailant (1x)
Newdoria (2x)
Mystic Tomato (3x)
Pitch-Black Warwolf (2x)
Sangan (1x)
Spirit Reaper (2x)
Strike Ninja (1x)
Manju of the Ten Thousand Hands (2x)
Magician of Faith (1x)
Spells (16x)
Mystic Plasma Zone (3x)
Terraforming (2x)
Dark Hole (1x)
Mystical Space Typhoon (1x)
Heavy Storm (1x)
Giant Trunade (2x)
Metamorphosis (1x)
Premature Burial (1x)
Swords of Revealing Light (1x)
Contract with the Dark Master (2x)
A Deal with Dark Ruler (1x)
Traps (5x)
Call of the Haunted (1x)
Deck Devastation Virus (1x)
Bottomless Trap Hole (3x)
Fusion (1x)
Thousand-Eyes Restrict (1x)
Dark Balter the Terrible (2x)
Reaper on the Nightmare (1x)
Gatling Dragon (1x)
EDIT: maybe it is better that I put an explanation down
Tribute monsters:
Jinzo Not much to tell about, I think. Primary for his effect, secondary because he is DARK and on the third place his ATK/DEF
Patrician of Darkness A great card. Redirecting with 2000 ATK: that is fun.
Dark Master - Zorc A card that hurts your opponent

In combination with
Jinzo 
2700 ATK is quite good, and it is better with his build-in
Raigeki ability
Berserk Dragon I WAS looking for a way to put this card in.. Thanks to John Danker, I remembered that it could be put in. When Zorc dies.. the opponent will still fear this Deck

.
Non-tribute monsters
Kycoo the Ghost Destroyer Beatstick, ability to remove monsters from the opponents Graveyard. I guess everyone understands it
Night Assailant Effect. No more, no less
Newdoria Same as
Night Assailant: because of the effect
Mystic Tomato Searching for cards like
Pitch-Black Warwolf and
Newdoria
Pitch-Black Warwolf If
Jinzo isn't yet on the field to make you happier

, then this card will do that for sure when you enter the Battlephase
Sangan Search for
Newdoria,
Pitch-Black Warwolf,
Spirit Reaper etc.
Spirit Reaper Great combination with
Patrician of Darkness, great help if the opponent tries to give themselves more light (other words: a giant Beatstick who has the task to crush your monsters and LP)
Strike Ninja Anyone who needs explanation? 3, 2, 1.. Explanation closed!
Manju of the Ten Thousand Hands He is no DARK-monster, but still necessary to get Zorc out.
Magician of Faith No explanation needed, I guess
Spells
Mystic Plasma Zone Power up the monsters for a OTK, or just Battle Damage
Terraforming Search for
Mystic Plasma Zone
Dark Hole *silence*
Mystical Space Typhoon *more silence*
Heavy Storm *even more silence* Just don't ask
Giant Trunade Some extra S/T-'removal'
Metamorphosis For morphing
Magician of Faith,
Patrician of Darkness,
Jinzo and
Berserk Dragon (if his ATK is getting too low) into Fusions
Premature Burial *leaves answering to the answermachine*
Swords of Revealing Light IF a opponent would be able to break through my defenses
Contract with the Dark Master To get
Dark Master - Zorc on the field
A Deal with Dark Ruler Getting
Berserk Dragon on the field
Traps
Call of the Haunted *shows how often the answering machine already has been used*
Deck Devastation Virus 'Little' bit of annoying the opponent
Bottomless Trap Hole *Starts searching for a new answering machine*
About the Fusions: just a bit of the normal part