This is my grixis control and kill deck... its all about not letting your opponent make any of the plays they want... you control, kill and burn your way through whatever they attempt to get on the field and swing for game with the cards at your disposal.
Initially this deck started off with just Master of Cruelties in it but i found whilst i could easily control the game and win just with this one creature i may get my opponent down to 1 life then wait 7 turns for a kill spell to finish the job... so with experience has come my improved build.
So the break down
Control
Essence Scatter, Dissipate and Psychic Strike
The main brunt of my control comes from full playsets of these three cards... depending who i'm playing i may throw in Counterflux if i need to make sure a negated move stays negated or maybe Negate and Dispel for those more spell heavy decks that i can conserve my mana with cheaper cost cards. But in a main board i need the general counter and the creature counter because most people will play creatures.
Kill and burn
Dreadbore, Mizzium Mortars and Doom Blade
It's rare when playing this deck to see much on the field for my opponent but if they do i usually have a solid answer for it. Dreadbore deals with everything, it kills creatures and it kills plainswalkers and that's most decks at a disadvantage right there. Mizzium Mortars is one of my favourite cards in standard right now as it's flexible between early and late game... 2 mana for 4 damage or later 6 mana for a field wipe... never a bad time to draw this card. Finally a couple of cards that have had to hit the side board; Doom Blade - this card was in my main deck for a long while at 2 but until i'm against a deck i know i can make use of it (i.e. not a black deck) i don't want to have a dead draw. Secondly Killing Wave - another card that was in the main board and is perfect if Master of Cruelties has done his thing and dropped your opponent to 1 life as they will be sacrificing all their creatures to stay alive... but i didn't need it main boarded until i know how useful its going to be.
Creatures
AEtherling and Master of Cruelties
Both of these cards win me games... with cruelties it tended to be a slow victory... with AEtherling it's become a lot easier to make my opponent pay quickly... if cruelties breaks through its game over the next turn with AEtherling backing him up.
The Extras
Think Twice
, Disperse, Rakdos's Return, Mutavault and Elixir of Immortality
This deck needs to be hitting every land drop from turn 1 - 6 if at all possible, so 24 land and a full set of think twice to keep the hand large and flexible. Disperse has come to be a answer to many annoying cards such as indestructible ones and it also can protect my plays, an early Pithing Needle can ruin my day, i can't stop it always and so i need it off the board to counter when they try to recast it or just to get AEtherling through. Rakdos's Return acts as an end game card with Master of Cruelties or as a more annoying well now you're top decking for the rest of the game card... it's flexible in that it can kill players and plainswalkers and the hand discard can be down right devastating. Mutavault has won me more games than i care to think about... occasionally you get stuck with not being able to play a creature due to lack of land but there is an empty field to take advantage of... Mutavault abuses this advantage 2 damage at a time. Finally Elixir of Immortality, this is my only single in the entire deck... i don't always want it but if a game drags i may start to run out of counters and other spells and so a recycle back into my deck for two mana is a comfy safety net should i need to use it :)
So that's the deck... it's won more games than i care to count and is fun.. though don't recommend it for a four player planechase where everyone runs control decks... it was a tad slow to say the least =P
