To be silly, I usually start the game by randomly selecting one general from the choices below (I "mill" until I find a general, then reshuffle).
Mulldrifter sees a lot less play in control decks than Think Twice but still makes appearances in them while getting most of its play from mid range decks
Mind Games (Tempest/Stronghold/Exodus) Remember how I mentioned that Blue was the color of slowing things down during the hectic days of Tempest Block limited
Once you do, the Giganotosaurs destroys all artifacts and creatures in play except for itself
Its first two chapters are less likely to completely overturn the game in draft, but its transformed side, Vessel of the All-Consuming, is very powerful
Similar to the Mox artifacts, Black Lotus costs zero mana, so you can play it on your first turn along side a land, but adds three mana of any one color when you sacrifice it