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Rules guide · Enchantment

Jaws of DefeatHow it works & interactions with other cards

By the ManaCount desk· 5 min read· Tarkir: Dragonstorm Commander· April 11, 2025
Carte Magic Jaws of Defeat

Jaws of Defeat 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

Whenever a creature you control enters, target opponent loses life equal to the difference between that creature's power and its toughness.

How it works : Jaws of Defeat

Original English text — Wizards of the Coast / Scryfall

  1. #1· Wizards of the Coast

    To find the difference between a creature’s power and its toughness, subtract the smaller of those two numbers from the larger one. For example, the difference between the power and toughness of a 3/5 creature is 2. The difference between the power and toughness of a 5/3 creature is also 2.

    No other card is named in this ruling.

02

Popular combos

Real combos played by the community, sorted by popularity.

Overkill
+Jaws of Defeat
#1

Overkill + Jaws of Defeat

Target opponent loses the gameNear-infinite lifeloss for target opponent
  1. 1Cause any creature to enter the battlefield under your control, triggering Jaws of Defeat.
  2. 2Holding priority, cast Overkill by paying {2}{B}, giving the creature that entered -0/-9999 until end of turn.
  3. 3The creature dies as a state-based action due to having less than 0 toughness.
  4. 4Resolve the Jaws of Defeat trigger, causing target opponent to lose life equal to the difference between the creature's power and toughness, using its last known information.
Hyalopterous Lemure
+Jaws of Defeat
#2

Hyalopterous Lemure + Jaws of Defeat

Target opponent loses the gameInfinite lifeloss for target opponent
  1. 1Cast Hyalopterous Lemure by paying {4}{B}.
  2. 2When Hyalopterous Lemure enters the battlefield, Jaws of Defeat triggers.
  3. 3Holding priority, activate Hyalopterous Lemure by paying {0}, giving it -1/-0 until end of turn.
  4. 4Repeat step 3 an arbitrarily large number of times.
  5. 5Resolve the Jaws of Defeat trigger, causing target opponent to lose life equal to the difference between Hyalopterous Lemure's power and toughness.
Jaws of Defeat
+Tree of Perdition
+Thousand-Year Elixir
#3

Jaws of Defeat + Tree of Perdition + Thousand-Year Elixir

Target opponent loses the gameInfinite lifeloss for target opponent
  1. 1Cast Tree of Perdition by paying {3}{B}.
  2. 2When Tree of Perdition enters the battlefield, Jaws of Defeat triggers, targeting an opponent.
  3. 3If the opponent has 13 or more life, hold priority and then activate Tree of Perdition by tapping it, swapping its toughness with an opponent's life total.
  4. 4Resolve the Jaws of Defeat trigger, causing the opponent targeted in step 3 to lose life equal to Tree of Perdition's toughness.
  5. 5The opponent loses the game as a state-based action due to having 0 or less life.
Jaws of Defeat
+Tree of Perdition
+Akroma's Memorial
#4

Jaws of Defeat + Tree of Perdition + Akroma's Memorial

Target opponent loses the gameInfinite lifeloss for target opponent
  1. 1Cast Tree of Perdition by paying {3}{B}.
  2. 2When Tree of Perdition enters the battlefield, Jaws of Defeat triggers, targeting an opponent.
  3. 3If the opponent has 13 or more life, hold priority and then activate Tree of Perdition by tapping it, swapping its toughness with an opponent's life total.
  4. 4Resolve the Jaws of Defeat trigger, causing the opponent targeted in step 3 to lose life equal to Tree of Perdition's toughness.
  5. 5The opponent loses the game as a state-based action due to having 0 or less life.
Jaws of Defeat
+Viscid Lemures
#5

Jaws of Defeat + Viscid Lemures

Target opponent loses the gameInfinite lifeloss for target opponent
  1. 1Cast Viscid Lemures by paying {4}{B}
  2. 2When Viscid Lemures enters the battlefield, Jaws of Defeat triggers.
  3. 3Holding priority, activate Viscid Lemures by paying {0}, giving it -1/-0 and swampwalk until end of turn.
  4. 4Repeat step 3 an arbitrarily large number of times.
  5. 5Resolve the Jaws of Defeat trigger, causing an opponent to lose life equal to the difference between Viscid Lemures' power and toughness.
Jaws of Defeat
+Tree of Perdition
+Tyvar, Jubilant Brawler
#6

Jaws of Defeat + Tree of Perdition + Tyvar, Jubilant Brawler

Target opponent loses the gameInfinite lifeloss for target opponent
  1. 1Cast Tree of Perdition by paying {3}{B}.
  2. 2When Tree of Perdition enters the battlefield, Jaws of Defeat triggers, targeting an opponent.
  3. 3If the opponent has 13 or more life, hold priority and then activate Tree of Perdition by tapping it, swapping its toughness with an opponent's life total.
  4. 4Resolve the Jaws of Defeat trigger, causing the opponent targeted in step 3 to lose life equal to Tree of Perdition's toughness.
  5. 5The opponent loses the game as a state-based action due to having 0 or less life.
Jaws of Defeat
+Tree of Perdition
+Concordant Crossroads
#7

Jaws of Defeat + Tree of Perdition + Concordant Crossroads

Target opponent loses the gameInfinite lifeloss for target opponent
  1. 1Cast Tree of Perdition by paying {3}{B}.
  2. 2When Tree of Perdition enters the battlefield, Jaws of Defeat triggers, targeting an opponent.
  3. 3If the opponent has 13 or more life, hold priority and then activate Tree of Perdition by tapping it, swapping its toughness with an opponent's life total.
  4. 4Resolve the Jaws of Defeat trigger, causing the opponent targeted in step 3 to lose life equal to Tree of Perdition's toughness.
  5. 5The opponent loses the game as a state-based action due to having 0 or less life.
Jaws of Defeat
+Tree of Perdition
+Tuktuk Rubblefort
#8

Jaws of Defeat + Tree of Perdition + Tuktuk Rubblefort

Target opponent loses the gameInfinite lifeloss for target opponent
  1. 1Cast Tree of Perdition by paying {3}{B}.
  2. 2When Tree of Perdition enters the battlefield, Jaws of Defeat triggers, targeting an opponent.
  3. 3If the opponent has 13 or more life, hold priority and then activate Tree of Perdition by tapping it, swapping its toughness with an opponent's life total.
  4. 4Resolve the Jaws of Defeat trigger, causing the opponent targeted in step 3 to lose life equal to Tree of Perdition's toughness.
  5. 5The opponent loses the game as a state-based action due to having 0 or less life.
03

Legal formats

legacyvintagecommanderoathbreakerduel
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