What I ment is that in the case of Angerboda I hardly believe that SimC takes into account that someone can die mid fight and that several people can die in the execute phase.
I have seen that, experienced it. Classic examples are Ursoc and Cenarius. In last phase you can choose to sacriface the person who get the charge, someone might fuck up and stay in the path of the boss with debuff. On Cenarius people can die to brambles, not resetting stacks, drake pulses etc. Many possibilities for people to fuck up and die.
This makes the trinket way more OP than simulation can show, because the simulation assume "perfect" raid enviorment, in this situation understand that noone dies for the whole fight.
Now picture this - last 20% of a boss fight, you throw everything you got at the boss, meta is off cooldown and you blow it, suddenly boss cast X spell that instakill 3 people for Y reason.You are in meta, propably with BL on AND you get 3 buffs to crit, mastery and haste for over 5k rating each!
What do you think? Can that compare to a stat stick with 1000 crit? I personaly will DE Eye of Guram if had 875 ilvl Angerboda