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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

Finishes
Nonfoil
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
Printings3Combos9EDHREC rank#9,981
CommanderLegalModernLegalStandardNot legal
Format legality

Constructed

StandardNot legal
PioneerNot legal
ModernLegal
LegacyLegal
VintageLegal
PauperNot legal

Commander

CommanderLegal
Pauper CommanderNot legal
Duel CommanderLegal
PreDHLegal
OathbreakerBanned
Tiny LeadersNot legal

Arena

AlchemyNot legal
HistoricNot legal
TimelessNot legal
BrawlNot legal
Standard BrawlNot legal
Competitive BrawlNot legal
GladiatorNot legal

Other

PremodernLegal
Old SchoolNot legal
Penny DreadfulLegal
Future StandardNot legal
Each player's life total becomes the number of creatures they control.
Market · per finishspark updated 42m ago · prices as of 2026-08-30
Nonfoil+0.9%
$34.44
$29.99 low$16.49 gapTCGplayer
Cheapest playable copy$34.44· across 3 printings· you're viewing it

Rulings

2 · latest Oct 4, 2004
  • 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.