Originally Posted by
wcm8
The line is blurred when it comes to decks running the color combinations of UBG. They all make use of Tarmogoyf (even a lot of pure-control Deedstill lists can have it and a few other beaters in the SB), Discard (either Hymn or Thoughtseize/Inquisition, or a combination of the two), FoW/Brainstorm, and black removal.
It's like a spectrum of decks:
Dark Thresh - - - Team America - - - BUG Control - - - Deedstill
Dark Thresh is pure tempo, with an emphasis on the early game. It runs the fewest lands of the bunch, and typically relies on Dark Confidant as one of its secondary creatures to help refill its hand. Nimble Mongoose and Delver of Secrets are additional options. This deck typically doesn't run midrange cards like Hymn. The main argument against running this deck is that it's somewhat like a worse version of Canadian Thresh -- red might be the better splash color right now since its removal serves double duty as reach and REB/Pyroblast are pretty amazing SB options.
Team America is still a quick tempo deck. Like DT, TA utilizes Daze and Stifle as two of its main forms of disruption, and Ponder to aid in card selection. However, it drops Confidant in favor of Tombstalker and a few other strong higher-CMC spells. I personally feel that this is the best utilization of UBG in Legacy, based on my experiences playing all of the variations of the color combination. I see it as the most balanced option going into an unknown field since it has a strong chance against most archetypes, whereas the other decks seem more geared towards beating a particular metagame.
BUG Control is where we start seeing a drop in Ponder, Daze, and Stifle in favor of more midrange and lategame cards such as maindeck Jace TMS. We also see more targeted discard, a higher land count and higher curve, and more late-game inevitability. The problem I see with this build is that it lacks the density of early game interaction that the other two decks have, and often loses to an aggressive start from the opponent if it doesn't draw into the correct sequence of answers.
Deedstill is the most controlling deck of the bunch, with virtually no maindeck creatures and utilization of maindeck Pernicious Deed to gain card advantage. It then uses something like Standstill or Ancestral Visions to replenish its hand. It has the most inevitability, but the problem is surviving into the lategame. The banning of Mental Misstep and subsequent speeding-up of the format really hurt this deck in my opinion. Snapcaster Mage is such a strong card for UBG Control that I'm not sure if going creatureless is so justifiable these days... However, in certain metagames it may be the best choice of the bunch -- but I would personally not feel comfortable bringing it into an unknown field.
Since it is a spectrum of decks, there are decks inbetween each of the four points. For example, the Team America builds that were running 22 lands and 2 Jace TMS in the maindeck veer towards being considered BUG Control, but still play Stifle/Daze.
That's just my take on the archetypes.