it depends what areas you're gonna clear
act3 works well in Chaos Sanc

I personally never mfed there so I never used a3 merc... I've ALWAYS used a2 merc with holy freeze aura
my equipment
andy's helm
eth fort in sacred armor
insight

worked well for my purposes (im on hardcore)

Like other said.

Depends on what you'll be doing.

a2 merc are pretty good overall.

easy, use a A2 merc, try an offensive aura cold to slow down the monsters,
slap an insight on him and ul never run out of mana
ber'd coa or andys mask thing
and a tweaked fort
this will allow u to get some fcr rings plus other stats instead of usin ur sojs for mana
so u get to move faster kill faster, get more out of ur runs basicaly

You only need one fcr ring with basic hdin setup.

a2 merc defensive (night for freeze,or hell for defiance)

eth insight (ultimate mana)
eth forty
eth andy ralled
cheap and works well

BUT
if u do cs, than your merc will die in 10 sec (in norm too ofc)
than a3 merc

well, act 2 merc defensive nm is a good choice, but for CS paladin act 3 merc or act 1 one is better.

What are the advantages/disadvantages of using a3 merc with lawbringer vs a1 merc with ice? Looking for a new merc to make hell chaos faster for grushing/levelling

eth upg kelpie snare