But it's only turn 3!!! (Modern)

My stab at a green/white control. Land destruction abounds here.

Emrakul is only in here because I keep coming against mill decks and they drive me crazy. Couple of these basically makes it mill proof for anything other than exile-mill. Bonus, SOMETIMES you'll get one off of a summoning trap. I played a U/B/W control deck and the guy countered one of my acidic slimes. Popped a surprise summoning trap. Boom, turn 4 Emrakul.

Terastadon is kind of my combo "game over" or "oh sh't" button card. If you're up and just need a little bit of an edge, shove him in, sac a few permanants (you should have plenty of land) and get 3 new creatures. If you're getting behind, you can burn your opponents land or other permanants. Terastadon, himself, can block most things w/o flying. I came back from a 6 - 28 life deficit to getting the opponent to scoop by just buying time to get a terastadon out, then blinking him.

Angelic Skirmisher is one of my favorite creature cards because of what it does to your opponents. Every combat your creatures either have vigilance, Lifelink, or first strike. Frequently I'll attack with vigilance (she's flying), and on the opponent's turn first strike or lifelink. It can derail an opponent who is on a roll pretty fast.

The cards I typically replace as sideboard options are SUmmoning Trap and Tooth and Nail. Cards I'll usually throw in are Sundering titan or Liquimetal+Splinter (if I really want to be a dick). Liquimetal is a good card to have up because it makes acidic slime that much more powerful, as it can now hit any card on the battlefield.

Side in Sundering Titan in multiplayer matches means that you'll be able to burn pretty much everybody's mana base on the board. sundering titan + blink = up to 15 lands burned in one turn. Be careful, though, because you may be caught in the crossfire.

What you see is the deck in its most winningest form. A flaw in the deck is that you will frequently take a few hits before you can do anything meaningful. I've got a lot of game recordings where I win after having 3, 4, or 5 life left.