Shroud is a keyword that means “This permanent can’t be the target of spells or abilities.” It includes spells and abilities you control.

The ability that defines Control Win Condition’s power and toughness works in all zones, not just the battlefield.

During your turn, Control Win Condition counts the turn in progress to determine its power and toughness.

We can neither confirm nor deny which Mark wouldn’t keep track of his turns every single time he drafted this card. Every. Single. Time. There are like twenty Marks in the studio so it’s no use guessing. But he knows who he is.