Biorhythm Price

Updated 2026-08-05

Biorhythm from 9th Edition is one of the few cards banned from Commander format on the basis of its potential to end games in a single cast: each player's life total resets to the number of creatures they control, making it trivially lethal against opponents running sparse boards. That ban calcified its market. Competitive demand is absent by definition, leaving collectors and players who seek the card for casual formats or display purposes as the primary buyers. 9th Edition had standard print runs from an era when the game was considerably smaller, meaning this copy belongs to a finite and slowly eroding supply. The card's notoriety sustains search traffic and collector interest that keeps it from fading into true obscurity. This card holds its position through ban history and the scarcity inherent in an older print run: collector buyers drawn to famous exclusions provide steady baseline demand.