ASS - About Stone Skin!

I was confused when I read the stats of this skills.. it absorb damage.. yeah that's right..

but in game I was figures out that when I attck a mage.. I can erase its stones skill just hitting it 3skill maybe is enough but sometimes i've using about 2 or chain skills and its still there..

do you thing it depends on my damage?
or the no. # of hits?

just want to ask.. in game guys not on database or link!

what can you say.. who's mage here?
do you encounter like that.?

 

mwybe he used Illusion to dodge your 2 chain skill, and also he can use it agsin immediately due to the the fact that it only have 1min cooldown

 

it also depends on the gear he has silly and also his strike resist.