Use Vision Charm or Stifle in response to the sacrifice trigger of Phyrexian Dreadnought. If timed correctly, you get a 12/12 Trample creature for two mana! Ride him to victory by using the same phase spell as protection, alongside Misdirection and Mizzium Skin. Each spell keeps even Abrupt Decay at bay. Delver of Secrets is your alternate win and is protected by some of the same spells as your Dreadnought.