Best L15 Mage ring?

[Motivating]

I've been testing out a few rings on my mage but I'm not sure which is the best to use, I use Art,Pink Grue,Pink paw and dex bone helm.
Help please :D

[Rescind]

Well for me I use 6armor 2 crit ring for bears and 8dage 2 crit for mages

[Motivating]

Ok thanks