Biorhythm is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.
01
Official card text
Each player's life total becomes the number of creatures they control.
How it works : Biorhythm
Original English text — Wizards of the Coast / Scryfall
- #1· Wizards of the Coast
If a player controls no creatures when this resolves, their life total will become zero and they will lose the game.
No other card is named in this ruling.
- #2· Wizards of the Coast
This spell causes the player to lose or gain enough life to change to the new life total.
No other card is named in this ruling.
02
Popular combos
Real combos played by the community, sorted by popularity.
#1
Biorhythm + Damnation
Draw the gameEach opponent loses the game
- 1Cast Damnation by paying its mana cost, destroying all creatures.
- 2Cast Biorhythm by paying its mana cost, causing each player's life total to become equal to the number of creatures they control.
- 3Each player that controls no creatures loses the game due to having 0 life.
#2
Biorhythm + Austere Command
Draw the gameEach opponent loses the game
- 1Cast Austere Command by paying its mana cost, destroying all creatures.
- 2Cast Biorhythm by paying its mana cost, causing each player's life total to become equal to the number of creatures they control.
- 3Each player that controls no creatures loses the game due to having 0 life.
#3
Biorhythm + Wrath of God
Draw the gameEach opponent loses the game
- 1Cast Wrath of God by paying its mana cost, destroying all creatures.
- 2Cast Biorhythm by paying its mana cost, causing each player's life total to become equal to the number of creatures they control.
- 3Each player that controls no creatures loses the game due to having 0 life.
#4
Biorhythm + Nevinyrral's Disk
Draw the gameEach opponent loses the game
- 1Activate Nevinyrral's Disk by paying
and tapping it, destroying all artifacts, enchantments and creatures.
- 2Cast Biorhythm by paying its mana cost, causing each player's life total to become equal to the number of creatures they control.
- 3Each player that controls no creatures loses the game due to having 0 life.
#5
Biorhythm + Supreme Verdict
Draw the gameEach opponent loses the game
- 1Cast Supreme Verdict by paying its mana cost, destroying all creatures.
- 2Cast Biorhythm by paying its mana cost, causing each player's life total to become equal to the number of creatures they control.
- 3Each player that controls no creatures loses the game due to having 0 life.
#6
Biorhythm + Damn
Draw the gameEach opponent loses the game
- 1Cast Damn for its overload cost, destroying all creatures.
- 2Cast Biorhythm by paying its mana cost, causing each player's life total to become equal to the number of creatures they control.
- 3Each player that controls no creatures loses the game due to having 0 life.
#7
Biorhythm + Cleansing Nova
Draw the gameEach opponent loses the game
- 1Cast Cleansing Nova by paying its mana cost, destroying all creatures.
- 2Cast Biorhythm by paying its mana cost, causing each player's life total to become equal to the number of creatures they control.
- 3Each player that controls no creatures loses the game due to having 0 life.
#8
Biorhythm + Kindred Judgment
Draw the gameEach opponent loses the game
- 1Cast Kindred Judgment by paying its mana cost, choosing a creature type that no opponent controls a creature of, destroying all creatures not of the chosen type.
- 2Cast Biorhythm by paying its mana cost, causing each player's life total to become equal to the number of creatures they control.
- 3Each player that controls no creatures loses the game due to having 0 life.
03
Legal formats
modernlegacyvintagepennycommanderduelpremodernpredh
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Meta decks with Biorhythm
No archived Top 8 deck with this card yet.












