The Hirelings of Act II are available from Greiz in Lut Gholein. They are melee attackers and use spears/javelins or polearms to great effect. These mercs are the most popular hires in the game, since they come with various auras that can greatly benefit their employer.
Skills: Jab attack.
Auras: These mercs have a variety of auras. There are three types available on each difficulty level, though the auras found on Normal and Hell difficulty levels are the same.

Combat (Normal): Prayer
Combat (Nightmare): Thorns
Combat (Hell): Prayer
Defense (Normal): Defiance
Defense (Nightmare): Holy Freeze
Defense (Hell): Defiance
Offense (Normal): Blessed Aim
Offense (Nightmare): Might
Offense (Hell): Blessed Aim