This decs revolve around casting Phyrexian Dreadnought then avoiding its ETB trigger. This can be done by casting Stifle to counter the ability or Vision Charm to simply phase Phyrexian Dreadnought out, allowing the trigger to resolve without it affecting the creature.

The deck also includes Fling, so if you have 3 mana open you can simply fling the dreadnought at your opponent for a massive amount of damage.

https://draftsim.com/premodern-mtg/