Turn the Tide

A defensive Fog with a memory problem: instead of erasing one attack outright, it shaves two power off every creature an opponent controls for the turn. That distinction explains the whole design. A true Fog blanks combat but leaves the board untouched, vulnerable to a second wave or a pump spell; this instead bends the math of an alpha strike, blunting a wide swarm of small attackers far more effectively than it slows a single fattie. Against a board of one-and-two-power creatures, it can neutralize an entire turn's offense at instant speed and even let a defender trade up; against one large threat, the two points barely register. That asymmetry makes it a width-punisher rather than a clean blanket, and it rewards reading the opposing board before you cast it rather than holding it as a reflexive panic button. The -2/-0 also lingers as a combat trick on defense: ambush a creature your opponent committed to an attack, and the toughness math can swing a block you would otherwise lose. It is a narrow, conditional answer, sharpest against go-wide aggression and nearly inert against decks built around a single heavy threat, which is exactly the kind of swingy, situational instant that asks a player to know the matchup before sleeving it.