Easy question: Mongoose vs. Berserker... Do you think the 25% armor reduction is worth the extra burst from 400 AP or should I stick with good old goose? The agility bonus might still edge out ahead since I'm mutilate, but I have been doing some looking and I see people recommending to others to go both ways.

Enchanting

Enchant Weapon- Berserking now reduces your armor by 5%. (Down from 25%)
From MMO-Champion

Berserking is the way to go and maybe the chain on the OH. I get dismantle alot now a days.

Yeah i noticed they were changing the armor reduction in the next patch after I had already posted what I did.

I'll probably weapon chain my offhand once it starts to become a problem. I just got the fleshshaper today on erk and was trying to make a decision. I guess its berserking

Berserking is clearly superior to anything else.

can beserker proc twice at the same time or is it like exicutioner and only 1 proc at a tyme?

Yes berserker can proc twice at once, giving +800 AP and -10% armor while both buffs are in place.

As for executioner, it can proc a second time while the first buff is up, but it just refreshes the buff; it does not have stacking effects. This is a misunderstanding of the community at large.

ok im shadow step Cold Blood spec atm, and im thinking about getting 2x lifewarding,
or 1x lifewarding and 1x chain, does any 1 kno from experience how often lifewarding procs?

I looked around and it looks like lifeward procs around 10% of the time, according to a post by an OT on wowhead, and heals for 350 per proc. Might seem ok, but I wouldnt recommend the rather steep cost of 4 voids over a straight +65 AP enchant if you're cheap, or berserking if you have the materials.

I think that berserk MH and weapon chain offhand is pretty standard, but you could go double berserk and do fine against non-disarming targets (which with warrior, rogue, and hunter all being pretty popular atm, I wouldn't take the risk. I am mutilate and am considering keeping a third dagger with berserk poisoned to switch in vs double caster teams.)

If you want to go for the healing one, it's up to you to do calculations to see if the healing will actually heal you more than the damage you'd be doing.

I remember the unholy enchant; none would take it. What was it, -25 damage to the target? That was basically 3.5 times more damage than the best +7 weapon enchant, and yet, none would consider it.