Ashiok Control (Historic)

Blue-black Ashiok control, splashing red for Tibalt, Cosmic Impostor. Fatal Push and Extinction Event can control creatures on the board in the early and late games, as well as Vraska's Contempt to deal with planeswalkers in the way. Your main wincons are found in Ashiok, Nightmare Muse and Tibalt, Cosmic Impostor. Ashiok, Nightmare Muse's ultimate, stealing three of your opponent's best spells from exile, can often close the game quickly, and Tibalt provides a nice bit of redundancy on the back of a MDFC, as well as fueling himself and Nightmare Muse alongside Ashiok, Dream Render and Thief of Sanity. The front side Valki, God of Lies, paired with Thoughtseize, can rip important spells from your opponent's hand while giving you information for the following turns, allowing you to set up appropriately for your late game. To wrap up the package, Alrund's Epiphany can give you the extra turn or two you need to get Ashiok or Tibalt up to ultimate range, or alternatively give you an extra combat step to beat with your assorted tokens or transformed Valki.

Edit 4-17-21: +1 Island, -1 Swamp to balance mana a bit better