Wall of Diffusion
A wall built to answer the one keyword that made walls useless. Shadow creatures, debuting in the same set as this card, lived in a separate combat dimension: they could neither block nor be blocked by anything outside their own keyword, so a swarm of small evasive attackers walked straight past any ground stall a defensive deck assembled. This is the red piece slotted into that puzzle, a cheap and immovable 0/5 permitted to sit in front of shadow as though it shared the ability. The design is narrow on purpose. Against ordinary creatures it does nothing a generic wall would not do better; against the exact threat that walls were structurally incapable of touching, it is the answer. That specificity is the whole pitch: a sideboard-grade hoser stapled to a body, printed inside the very set that created the problem it solves. Red rarely gets to play the wall game, so handing the color a defensive piece keyed to a parallel evasion mechanic is a small subversion of its identity. The keyword-specific blocker is a design shape Wizards has returned to repeatedly since: a creature built to neutralize one named ability that otherwise ignores defenders. Here it is at its most literal, a wall whose only meaningful sentence is the line that lets it block the unblockable.
