Rashka the Slayer

A color-hoser with the conditional dressed up as a heroic archetype: an archer who grows when she stops black creatures. The +1/+2 trigger keys specifically off blocking black creatures, which marks this as early Magic at its most literal, when antagonism between colors lived in the body text of midrange creatures rather than in sideboard cards. Reach is the structural glue, since it lets the bonus apply against black fliers as well as ground attackers, widening the situations in which the trigger fires beyond what a vanilla 3/3 would manage. The friction in the design is that the bonus is entirely reactive and defensive: it does nothing on offense, nothing against any other color, and nothing if the opponent simply declines to attack into it. That narrowness is the point. The card asks the opposing black deck to play around a five-mana blocker that swings the math of any single combat step, and otherwise sits there as an overpriced ground-stop. As a legendary creature whose entire identity is the slaying of a specific enemy, it reads now as a snapshot of how the earliest sets tied mechanical function to narrative grudges, before hatebears learned to fold their hate into a generically useful body.