Yeah thanks for the sarcasm

Can't believe I'm actually going to explain this, but here we go:
Quote:
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Proc is a common term used primarily in game programming to refer to an event - a "procedure" - triggered under particular circumstances.
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The Royal Onyx of the Glacial fist has a chance to 'proc' a buff called 'Glacial Fist'. That buff gives a temporary boost in combat rating.