Blinding Fog

The classic Fog has always had one weakness: it stops combat damage but leaves your blockers exposed to a removal spell cast in the same window, or to a Falter effect that pushes an attacker through unopposed. This version closes half that gap. By tacking a turn of hexproof onto damage prevention that applies only to creatures, it does double duty against the two ways an alpha strike actually resolves through blockers: blanking the combat math and locking out the instant-speed removal that would otherwise clear the way. An opponent who swings out and then tries to burn down a blocker finds it untouchable; a player counting on a pump spell to break through a chump-block finds the extra damage simply prevented. The important limit is that the prevention only covers creatures, not players, so this is not a defensive turn that saves your life total from an unblocked clock or from direct burn; it is a blocking-step insurance policy that keeps your board intact and your creatures out of targeting range. That is the real value of the extra two mana over a bare Fog: prevention and protection are separate axes, and stapling hexproof to the prevention makes it far harder to play around than the damage clause alone would suggest. The cost is that it wants bodies to shield and does nothing against a clock that ignores your creatures, which fixes it firmly as a reactive card that earns its slot only when there is a board worth defending.