Like control decks, midrange decks will gain incremental advantages over the course of the game, but where they differ is that midrange apply pressure to the opponent at all stages of the game, not just towards the end
Conqueror's Flail Sure, +1/+1 for each color of permanent you control is fine
Ultimately, even though nearly everyone in R&D wanted to abolish the list, Wizards decided that they could not break the promise that they made all those years ago
Atraxa, Grand Unifier First up, we have Atraxa, Grand Unifier portrayed as Sephiroth, the Savior
In Legacy, decks need to establish a commanding presence right out of the gate
Until then, you can use it as a sort of Overrun, or go for a value plan and just generate some extra ETB effects and sacrifice fodder