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Each player's life total becomes the number of creatures they control.
Abilities, attacks, weakness & resistance
Other cards from Ninth Edition
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Biorhythm (9ED-231) is a rare green sorcery from Ninth Edition that sets each player's life total equal to the number of creatures they control. When it resolves, players gain or lose life to reach that total, which can immediately cause a player with no creatures to drop to zero life. The card functions as a board-swing effect that can end games or dramatically change races depending on board state.
Catalog pricing data as of 20 Apr 2026, 16:30
