The Burning Axe of Sankis says:
Chance to fight through the pain when enemies hit you.
What does this do?
11 Answer
It casts "Ignore Pain" on you, causing you to take 50 percent damage for 5 seconds.
According to a great post by muir who analyzed the effects of the weapon, it essentially prevents 28.2 percent of all damage taken (at least while in the thick of it), once you account for procs.
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