Rule evolution

Rule 810.9a

Previously numbered 806.9a, 806.10a.

Earliest archived Rules release: 2009-10-01 · 2 wording revisions · 2 renumberings

  1. Earliest archived Rules release806.9aDetails
    If an effect needs to know the value of an individual player's life total, that effect uses the team's life total divided by two, rounded up, instead. Example: In a Two-Headed Giant game, a team is at 17 life when a player activates Heartless Hidetsugu's ability, which reads, "Heartless Hidetsugu deals to each player damage equal to half that player's life total, rounded down." For the purposes of this ability, each player on that team is considered to be at 9 life. Heartless Hidetsugu deals 4 damage to each of those players, for a total of 8 damage. The team will end up at 9 life. Example: In a Two-Headed Giant game, a player controls Test of Endurance, an enchantment that reads, "At the beginning of your upkeep, if you have 50 or more life, you win the game." At the beginning of that player's upkeep, the player's team wins the game only if his or her share of the team's life total is 50 or more. The team's life total must be 99 or more for that to happen. Example: In a Two-Headed Giant game, a player controls Lurking Jackals, which reads, "When an opponent has 10 life or less, if Lurking Jackals is an enchantment, it becomes a 3/2 Hound creature." If the opposing team has 22 life and 1 damage is dealt to a particular opponent, Lurking Jackals won't become a creature. The opposing team's life total must be 20 or less for that to happen.
  2. Renumbered806.9a → 806.10aDetails

    Previously
    8. Multiplayer Rules
    806. Two-Headed Giant Variant

    Then
    8. Multiplayer Rules
    806. Two-Headed Giant Variant

    If an effect needs to know the value of an individual player's life total, that effect uses the team's life total divided by two, rounded up, instead. Example: In a Two-Headed Giant game, a team is at 17 life when a player activates Heartless Hidetsugu's ability, which reads, "Heartless Hidetsugu deals to each player damage equal to half that player's life total, rounded down." For the purposes of this ability, each player on that team is considered to be at 9 life. Heartless Hidetsugu deals 4 damage to each of those players, for a total of 8 damage. The team will end up at 9 life. Example: In a Two-Headed Giant game, a player controls Test of Endurance, an enchantment that reads, "At the beginning of your upkeep, if you have 50 or more life, you win the game." At the beginning of that player's upkeep, the player's team wins the game only if his or her share of the team's life total is 50 or more. The team's life total must be 99 or more for that to happen. Example: In a Two-Headed Giant game, a player controls Lurking Jackals, which reads, "When an opponent has 10 life or less, if Lurking Jackals is an enchantment, it becomes a 3/2 Hound creature." If the opposing team has 22 life and 1 damage is dealt to a particular opponent, Lurking Jackals won't become a creature. The opposing team's life total must be 20 or less for that to happen.
  3. Wording changed806.10aDetails
    If ana cost or effect needs to know the value of an individual player's life total, that cost or effect uses the team's life total divided by two, rounded up, instead. Example: In a Two-Headed Giant game, a player on a team isthat athas 17 life whenis atargeted playerby activatesBeacon Heartlessof Hidetsugu's abilityImmortality, which reads, "Heartlessin Hidetsugupart, deals"Double totarget each player damage equal to half that player's life total, rounded down." For the purposes of this ability, each player on that team is considered to be at 9 life. That player gains 17 life, so the team winds up at 34 life. Heartless Hidetsugu deals 4 damage to each of those players, for a total of 8 damage. Example: In a Two-Headed Giant game, a player controls Test of Endurance, an enchantment that reads, "At the beginning of your upkeep, if you have 50 or more life, you win the game." The team will end up at 9 life. At the beginning of that player's upkeep, the player's team wins the game if his or her team's life total is 50 or more. Example: In a Two-Headed Giant game, a player controls Test of Endurance, an enchantment that reads, "At the beginning of your upkeep, if you have 50 or more life, you win the game." Example: In a Two-Headed Giant game, a player on a team that has 11 life controls Lurking Evil, an enchantment that reads, "Pay half your life, rounded up: Lurking Evil becomes a 4/4 Horror creature with flying." At the beginning of that player's upkeep, the player's team wins the game only if his or her share of the team's life total is 50 or more. To activate the ability, that player must pay 6 life. The team's life total must be 99 or more for that to happen. The team winds up at 5 life.Example: In a Two-Headed Giant game, a player controls Lurking Jackals, which reads, "When an opponent has 10 life or less, if Lurking Jackals is an enchantment, it becomes a 3/2 Hound creature." If the opposing team has 22 life and 1 damage is dealt to a particular opponent, Lurking Jackals won't become a creature. The opposing team's life total must be 20 or less for that to happen.
  4. Renumbered806.10a → 810.9aDetails

    Previously
    8. Multiplayer Rules
    806. Two-Headed Giant Variant

    Then
    8. Multiplayer Rules
    810. Two-Headed Giant Variant

    If a cost or effect needs to know the value of an individual player's life total, that cost or effect uses the team's life total instead. Example: In a Two-Headed Giant game, a player on a team that has 17 life is targeted by Beacon of Immortality, which reads, in part, "Double target player's life total." That player gains 17 life, so the team winds up at 34 life. Example: In a Two-Headed Giant game, a player controls Test of Endurance, an enchantment that reads, "At the beginning of your upkeep, if you have 50 or more life, you win the game." At the beginning of that player's upkeep, the player's team wins the game if his or her team's life total is 50 or more. Example: In a Two-Headed Giant game, a player on a team that has 11 life controls Lurking Evil, an enchantment that reads, "Pay half your life, rounded up: Lurking Evil becomes a 4/4 Horror creature with flying." To activate the ability, that player must pay 6 life. The team winds up at 5 life.
  5. Wording changed810.9aDetails
    If a cost or effect needs to know the value of an individual player's life total, that cost or effect uses the team's life total instead. Example: In a Two-Headed Giant game, a player on a team that has 17 life is targeted by Beacon of Immortality, which reads, in part, "Double target player's life total." That player gains 17 life, so the team winds up at 34 life. Example: In a Two-Headed Giant game, a player controls Test of Endurance, an enchantment that reads, "At the beginning of your upkeep, if you have 50 or more life, you win the game." At the beginning of that player's upkeep, the player's team wins the game if histheir or her team's life total is 50 or more. Example: In a Two-Headed Giant game, a player on a team that has 11 life controls Lurking Evil, an enchantment that reads, "Pay half your life, rounded up: Lurking Evil becomes a 4/4 Horror creature with flying." To activate the ability, that player must pay 6 life. The team winds up at 5 life.

Current in the latest available Rules
Unchanged since 2026-08-07.