| Blackflame is a unique Amethyst Ring. It requires Level 49.
It works like a "damage taken as X" stat. Essentially, your ignites will scale with your own fire/burning damage stats as usual and not with chaos damage stats. However, the monster's damage taken will be scaled by chaos damage affecting stats like chaos resistance and wither (and not by fire resistance, etc).
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This is a new unique Amethyst ring called Blackflame, which is themed around fire and chaos damage. Its headline effect is that your ignites now deal chaos damage, along with a cool new chaos ignited effect on monsters. Also, if you ignite a Withered enemy while wearing Blackflame, the Wither will no longer expire and can build up to its maximum of 15 stacks, if the enemy survives long enough that is.
Along with its various other benefits, this unique ring should “ignite” a few new ways of playing fire and chaos damage characters.