Despite W/B Midrange having answers for everything, its the epitome of medium
First, you have numerous ways to be ahead on mana with cards like Eldrazi Temple, but also with cards like Mana Crypt and Sol Ring, reaching you closer to casting your Commander
Elspeth can come down in the mid-game since she costs five mana, either establishing a board presence with her first two abilities or destroying a problematic creature of your opponents, making her a control players dream planeswalker
Whenever a creature enters the battlefield under your control, and no other creatures that share a type with it, you create a token thats a copy of that creature
And this is even more striking because the core of all that wheeling and dealing is the cards themselves, the actual game pieces -- not spin-offs like toys, movies, TV shows, or merch