Glissa's Courier

Mountainwalk is one of the oldest evasion clauses in the game, and it has always been a gamble: it does nothing against an opponent who never controls a Mountain, and everything against one who does. What this body adds to that bet is the color irony. A green Phyrexian Horror that slips past red defenders speaks to the specific corner where the Mela-versus-Mirran lines were drawn, but the design itself predates any flavor wrapper: hand a creature an unblockable clause keyed to a single basic land type and you have built a card whose value swings entirely on who sits across the table. The 2/3 is the tell. It is not a beater that demands an answer; it is a steady, repeatable two-point clock that does its work only when the defender has a Mountain on the battlefield. Against the right deck it connects every turn; against the wrong one it is a plain green three-drop with a forgettable body. That conditionality is exactly what landwalk has always traded on, and why these creatures live or die by the room rather than by the rate. The ability scales with nothing about the card itself: no triggers, no scaling clock, no way to manufacture the condition. It simply waits for the opposing manabase to declare whether it is a windfall or a vanilla beater.