Great Wall

Picture a literal wall of stone parked in front of a column of soldiers who were supposed to slip through the plains unopposed: that is the entire card, and the flavor matches the rules text one to one in the way Legends loved before design vocabulary got subtler. The mechanic it switches off is plainswalk, the white instance of an evasion family that read like conditional unblockability, and the answer here is the cleanest the era had: turn the keyword off for blocking purposes and leave everything else alone. No exile, no destroy, no counter; just a small static rule rewrite that contradicts the offending text box, parked on an enchantment so the narrow removal of the period cannot answer it. This belongs to a now-vanished design school where sideboards were built from permanents that quietly disabled opposing keywords, the same impulse behind the circles of protection and the various "creatures of this color can't attack" enchantments from the same window. Landwalk itself has been deprecated over the last two decades, surviving mostly on tribal throwbacks, so the problem this was printed to solve barely exists anymore. What remains is a fossil of how early Magic handled evasion: not by trading damage or buying tempo, but by writing a permanent rule whose only job was to flatly negate another card's text.