Insight on merc worth it?

Hi folks, I’m planning to equip my nightmare merc A2 with Insight.

Are those buffs applied to my main character or this is for merc only?

+2 To Mana After Each Kill
23% Better Chance of Getting

I have very decent physical damage at the moment from some elite partizan. And some write on forums that it is quite a difficult thing to find 4 socketed polearm on early nightmare.

What are your thoughts on it?

These apply to your merc. The mana after each kill is useless because mercs don’t have mana. The Magic find apllies to kills made by your merc on top of you own magic find.

So if you have 100% and your merc makes a kill, 123% magic find is applied to whatever drops from that monster.

Insight is great on caster characters and the best ones are made in a 4 socket ethereal Tresher.

insight is basically infinite mana and the runes are cheap as chips… even mana burn is recovered in about 0.1 seconds. it’s huge damage too - my lvl 93 merc does almost 4k with an ethereal colossus voulge (and his jab skill multiplies that). so much damage that he only needs potions vs phys immunes, act bosses and the rare ranged mob pack with might/amp damage etc

if i was loaded i would have infinity, because that removes lightning immunity from most mobs so my trapsin would clear areas 2-3 times quicker, but you need 2 ber runes for that

It is extremely easy to find a 4 socket polearm in Nightmare. The difficulty is choosing a suitable one for Insight (though the runes are cheap and easy so I guess you do not want to worry too much about it). You want the base damage to be as high as possible but just note the polearm’s strength requirement before choosing to ensure your Merc can lift it.

The one problem with an Insight Merc is that in Nightmare and without another good source of Lifesteal, he is going to die a lot and you will suddenly have no mana. Especially now you can longer bug him out to make him more survivable after this patch.