Do multiple chill stacks stack the "Shatter" aura?

[Seeking Solace]

For example, if the enemy has 7 stacks of chill, does that increase the CC on the target by +70%? Or is the Shatter aura just a flat +10% CC regardless of the number of chill stacks? (Just needs at least 1 chill stack to apply)

[Conan The Librarian]

With auras that enhance buffs (blue) or debuffs (red) (not stacks (Orange), as they are different) they use the same rules that buffs/debuffs do:

First instance of this buff/debuff (or extra effect) is 100% effectiveness, and all instances past the first combine at a 50% effectiveness.

To be clear, this means that having more chill will make [Shatter] more effective, but since [Shatter] is a unique aura, having multiple instances of [Shatter] won't make a difference.

Hope this helps

[Seeking Solace]

I see. Makes sense. Thank you!

So 7 stacks of Chill would provide 10% + (5% * 6) = 40% CC. Pretty neat.