Does It???

Cold Mastery would still help you in hell for example if you had it at a lvl over 20 or around there right

Yes it would. For example:
Hell Pindleskin has a base of 50 cold resists in hell. With your lvl 25 cold mastery he would then have –90% cold resistance. Due to your –140% to your enemies cold resistance. That’s kind of why everyone bitches about pvp blizz sorcs because you need some insane cold resists (I’m talking way way past 75) to stay alive for more than a few seconds.

Cold Mastery does not reduce Cold Resistance below 0.

Cold Mastery does not reduce Cold Resistance below 0.

If he has 50% resists in hell, and your mastery is -200%, he will have -100%
If he has 75% resists in hell, and your mastery is -200%, he will have -100%
If he has 95% resists in hell, and your mastery is -200%, he will have -100%
If he has 75% resists in hell with other stacked resists(4 thul shield), he will have like 200% to all resists in theory. So what you have to do, is shave off his current resist(75%) and keep shaving it until all 200% is gone.
So, if he has 200% resists in total, and you do -200%, he will have 0 resists to cold.


Cold mastery does not effect cold immune monsters.

Just checked Arreat Summit, Cold Mastery does allow dropping below 0%. Must've changed with the patch, good eye.

Just checked Arreat Summit, Cold Mastery does allow dropping below 0%. Must've changed with the patch, good eye.

You are now right 99% of the time. Your D2 knowledge mastery is at lvl19 where as most of us here (ok maybe not most of us, just me and a few others) are at lvl 10. Keep up the good work!

okay thanks a lot that was what i thought