Subject: Blue and Black Decks- Peter -
 
Spells = 19                              Lands = 19 Island
                                              
x4 Boomerang
x4 Hermetic Study
x4 Counterspell
x3 Mana Leak
x2 Exhaustion
x2 Unstable Mutation
 
Creatures = 22
 
x4 Horseshoe Crab
x4 Cloud Sprite
x4 Cloud of Faeries
x4 Archivist
x4 Air Elemental
x2 Indentured Djinn
 
This may seem like a plain blue deck, but there are some great cards and combos in it.  The main combo is the Horseshoe Crab and the Hermetic Study.  Horseshoe Crab is a 1/3 for 3 mana- its ability is one blue to untap it.  Hermatic study gives the ability of- tap to deal 1 damage to target creature or player.  So, if you tap it to deal a damage then just tap a blue and do it again, and again, and again.
Cloud Sprite is a 1/1 flying for 1 mana, but it can only block creatures with flying, but honestly who gives a shit?  First turn cCloud Sprite, second turn Cloud of Faeries and put an Unstable Mutation on the sprite and your laughing.
Indentured Djinn isn't liked by many so it can substituted by Mahomoti Djinn or Palincron, unfortunately, I have neither.
 
Black Deck 
 
Spells = 22                                 Lands = 20 Swamp
 
x4 Syphon Mind
x4 Syphon Soul
x4 Animate Dead
x4 Misery Charm
x4 Dark Ritual
x2 Rhystic Tutor
 
Creatures = 18
 
x4 Haunted Cadaver
x4 Cadaverous Knight
x4 Ravenous Rats
x4 Kjeldoran Dead
x2 Greel, Mind Raker
 
This is mainly a melee deck.  There is a lot of hand destruction and there's also quite a bit of power in the deck.  You use a syphon mind for hand destruction and then draw new cards of your own.  If this takes you past the seven card limit, then use Greel and get rid of two of your cards, and all of your opponent's hand.  Animate Dead is great for bringing back hand destruction, such as Ravenous Rats, or if they have a big beefy creature in they're graveyard, take it and use it against them.
One of the Rhystic Tutors can be substituted with Demonic Tutor if you've got one spare.
Send me a message if you want at quicksilverdagger@hotmail.com
Hope this helps ;^)