Enslaved Scout

A conditional evasion creature priced in an era when "can't be blocked if the defender has a Mountain" was treated as a real, repeatable threat rather than a rounding error. The activation is the tell: it costs colorless mana and can be paid every turn, so the Scout's mountainwalk is not a one-time keyword stapled on at printing but an ability you choose to switch on when the board state rewards it. That design choice ties the card to the metagame it was built for, a red-on-red mirror world where opposing Mountains were near-guaranteed and landwalk turned a vanilla 2/2 body into reliable damage. The flavor and the function point the same direction: a goblin pressed into service to find the gaps in enemy terrain, made literal as a creature that exploits the defender's own land choices. It belongs to a whole class of landwalk commons and uncommons from the period (forestwalk, swampwalk, islandwalk variants attached to modest beaters) that quietly assumed every opponent would oblige with the matching basic. The strategic axis it sits on is narrow by modern standards: against a deck without Mountains, the activation does nothing and you are holding a plain 2/2, which is why this style of color-keyed evasion has largely been retired in favor of unconditional menace and flying. As a snapshot of how aggression was costed in that era, it reads clearly.