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Biorhythm

{6}{G}{G}

Sorcery

9EDNinth Edition#231rare
Game Changer
Banned in Oathbreaker

"I have seen life's purpose, and now it is my own." —Kamahl, druid acolyte

Border
white
Frame
2003
Pull rate
about 1 per booster–1 in 112
Illustrator
Ron Spears
Found in
Ninth Edition MTGO Redemption · Ninth Edition Booster Pack
Printings3CombosIn 9
CommanderLegalModernLegalStandardNot legal
Format legality
AlchemyNot legal
BrawlNot legal
CommanderLegal
Competitive BrawlNot legal
DuelLegal
Future StandardNot legal
GladiatorNot legal
HistoricNot legal
LegacyLegal
ModernLegal
OathbreakerBanned
Old SchoolNot legal
PauperNot legal
Pauper CommanderNot legal
PennyLegal
PioneerNot legal
PreDHLegal
PremodernLegal
StandardNot legal
Standard BrawlNot legal
TimelessNot legal
Tiny LeadersNot legal
VintageLegal
Each player's life total becomes the number of creatures they control.
Market · per finishspark updated 22h ago · prices as of 2026-07-12
Nonfoil+3.0%
$33.68
$29.73 low$11.23 gap
Cheapest playable copy$33.68· across 3 printings

Rulings

2 · latest Oct 4, 2004 · one tap opens all
  • WotCOct 4, 2004

    If a player controls no creatures when this resolves, their life total will become zero and they will lose the game.

  • WotCOct 4, 2004

    This spell causes the player to lose or gain enough life to change to the new life total.