Im wondering if darkmoon card: death is worth using on my pve gear for shadow. I aware that it has a 45 s internal cooldown, but i still think its awesome. my current tirnkets are :

-"nevermelting ice crystal" http://www.wowarmory.com/item-info.xml?i=50259
-"talisman of resurgence" http://www.wowarmory.com/item-info.xml?i=48724

Please help me make my decision! . If i should keep my trinkets, or replace one.