Wall of Heat
Red walls are a contradiction the color pie has spent thirty years pretending it can sustain, and this is an early attempt to make the contradiction work. Red gets defenders rarely because the color is supposed to be the one that attacks; when it does get a wall, the wall earns its slot by being aggressively statted on the back end. Six toughness for three mana was a real number in 1994, and the two power matters even behind Defender: it sets a damage clamp that punishes attackers in a way a 0-power blocker never could, killing two-toughness creatures that crash into it without trading away the wall. The design template here (cheap red defender with outsized toughness and a non-trivial power stat) is the one Wizards has returned to whenever red is allowed a blocker at all. The dating tell is the absence of any secondary text: later iterations would tack on a firebreathing ability, a damage trigger, or a tap-to-ping line, because a plain red wall reads as a missed opportunity to express the color's identity. This one just stands there and absorbs, which is exactly the job, and exactly why it has never been more than a footnote in red's defender lineage.



