Obviously you don't either. Your primary hand and offhand items can't be looted off you. It doesn't make much sense to waste time bagging them when it's far more important to bag your droppable armor.
As I hear it, in offhand damage is king, in MAIN hand, ratio is king...This being because offhand doesn't always swing, and main hand does always swing...plus, main hand has damage bonus.
Thus why Wurmslayer is main-hand only. If it were usable in offhand, it would be worth a hell of a lot more...
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Azraelle Norgale 56 Seasons Preserving Tunare's Will Tribunal Server
The delay is the most important thing about a MAIN hand weapon for classes that get a main hand damage bonus. The smaller (faster) the delay the more times in a given time frame the main hand damage bonus is applied. The best primary hand weapon in the game before they nerfed it was 3/10 weapon called the Mosscovered Twig.
Off hand is all about ratio.
The exception to this may be the Rogue class due to the backstab multiplier. Over time a Rogue may do more damage with a higher damage primary hand weapon than low delay weapon.
This would be a poor offhander at best for a Rogue. A taunting proc (useless and dangerous to the Rogue) and a poor ratio for the offhand make this obviously a better weapon for a hybrid. Actually, it would pretty much be situational for even an SK at 12/22 by the time you are killing this target.
Weapons *do* proc offhand. However, since you'll swing less often with a given weapon in your offhand compared to your main (due to failed Duel Wield checks), you're less likely to get a proc.
12/24 is a pretty crappy ratio for a SK. I'd think damage would be more important than a few extra mana. Take into account that this is not a newbie encounter and that a MoSS is vastly superior to this in terms of damage and it would become a toy for any SK that could really contribute to this mob's killing. Rarely used.
I could see a ranger getting some use out of this or perhaps a warrior if this proc's taunt is really as bad as people say it is. Otherwise it's basicly a caster weapon. Many fights, casters are either not allowed to sit or can't sit due to AoEs. Because enchanters get spells that are faster and probably more worthwhile than trying to get this to proc and necros are pretty good in the mana regen dept as it is, I'd like to see this go to a wizard or mage if I saw one drop.
Anyways, as always, it's up to the people involved in the kill to decide who would help the guild the most from this item. I doubt a bunch of level 30s can really make that decision for an item that drops off a 55+ encounter. :)
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Lich Reegor Mortees scaled Arch Lich E'Ci Boo Boo is my lengthy motsa ball.