This is an 80-card Control Deck… Why? … to get more quality cards in the deck and create a variety for wincon aside from pissing off your opponent 🙂 … But first and foremost… you’re main object is control the early threats by removing their creatures and denying them a healthy board so you can establish your hand and slowly prep for a formidable control defense and win your way either by your opponents conceding or with Tergrid, Liliana or Lolth.
MTG Arena - Standard Dimir Control with Tergrid, Professor Onyx and Lolth the Spider Queen