Help a newbie with some item related issue :)

[Poisonbones 0]

Hi guys, I just want to let you know that I'm a casual player that plays when it has time...so if my question is retarded, I apologize :)

Recently I got in possession of Soul of the Shadowblade http://www.wowhead.com/item=150936
My dilemma is :
I currently have: Critical Strike 33%
Haste 18%
Mastery 100%
Versatiliy 3%
Avoidance 7%
Agility 36.427 Stamina 68.254
If I equip the ring, I will have to change Will of Valeera http://www.wowhead.com/item=137069 with Fanged Slayer's Legguards (895ilvl) and a ring with critical and mastery with the legendary ring.
My new stats will be: Critical Strike 27%
Haste 19%
Mastery 106%
Versatiliy 3%
Avoidance 7%
Agility 34.227 Stamina 65.946
My question is: Is it worth it to lose all that crit and agi to gain Vigor,1 socket and 2 bonus set (3 sec cd, 20 energy Garrote) ? PVE wise
Thank you, and sorry for the long post.

[AlausBaronas 0]

If you're only interested in damage and not the utility of the legendary legs, just sim it. Just get Simcraft addon, go to raidbots.com and see for yourself which outputs more damage ;)