Historical Rules · 17 November 2023
Rule 107.12
Official source text from the 17 November 2023 Rules release
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.”