Chaos ensues

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Chaos Ensues
Mechanic
Introduced Planechase
Last used Planechase Unknown
Scryfall Statistics
6 cards
White mana 16.7% Blue mana 16.7% Black mana 16.7% Red mana 16.7% Green mana 16.7% Multicolored 16.7%

Chaos ensues whenever the chaos symbol (Chaos ensues symbol) is rolled on a planar die. This mechanic is used exclusively in the Planechase format.

Every plane card has a chaos ability. When chaos ensues, the chaos ability of the active plane card is triggered.[1][2]

The term was formally introduced in March of the Machine Commander con cards. It is equivalent to rolling the chaos symbol on the planar die. It was also an added extra on multiple regular cards in the Universes Beyond set Doctor Who.[3]

Rules

From the glossary of the Comprehensive Rules (November 14, 2025—Avatar: The Last Airbender)

Chaos Ability
An ability of a plane card that triggers “Whenever chaos ensues” in the Planechase casual variant. See rule 311.7.

From the Comprehensive Rules (November 14, 2025—Avatar: The Last Airbender)

  • 311.7. Each plane card has a triggered ability that triggers “Whenever chaos ensues.” These are called chaos abilities. Each one is indicated by a chaos symbol to the left of the ability, though the symbol itself has no special rules meaning. This ability triggers if the chaos symbol is rolled on the planar die (see rule 901.9b), if a resolving spell or ability says that chaos ensues, or if a resolving spell or ability states that chaos ensues for a particular object. In the last case, the chaos ability can trigger even if that plane card is still in the planar deck but revealed. A chaos ability is controlled by the current planar controller.

Chaos symbol

From the glossary of the Comprehensive Rules (November 14, 2025—Avatar: The Last Airbender)

Chaos Symbol
The chaos symbol appears on the planar die and near some triggered abilities of plane cards in the Planechase casual variant. See rule 107.12.

From the Comprehensive Rules (November 14, 2025—Avatar: The Last Airbender)

  • 107.12. The chaos symbol is {CHAOS}. It appears on one face of the planar die used in the Planechase casual variant, as well as in abilities that refer to the results of rolling the planar die. It looks like a swirling vortex. See rule 901, “Planechase.”

References