Mercenaries in Diablo II are hired from town NPCs once the related quest requirement is met, and they can be built around your character’s needs with a weapon, armor, and helm.

The best choice is usually the hireling whose aura, skills, or fighting position covers a weakness in your build. They earn experience beside you, but their usefulness depends heavily on survivability and sensible equipment.
A durable mercenary can hold enemies in place, provide ranged pressure, or add a helpful aura. Since options change between acts, difficulties, and game versions, check the hire screen rather than relying on a single universal recommendation.
This guide covers the practical decisions behind hiring, gearing, healing, reviving, and replacing a hireling.
How to Unlock and Hire a Mercenary
Mercenaries are available from certain town NPCs after you complete the quest requirement connected to that hireling service. Speak with the relevant NPC in town and review the available candidates before hiring. The screen is where you can compare the options offered in your current act and difficulty, including the skills or aura shown for each candidate.
Do not assume that every version of Diablo II presents the same selection. Mercenary availability, skills, and auras may vary by version, difficulty, and act. If you are following an older build guide, compare its recommendation with the hire screen in your own game before spending gold or changing companions.
Town NPCs and quest unlocks
The practical order is simple: complete the related quest, return to town, and speak with the NPC who offers mercenary services. A hireling is not merely extra damage. Their role may be to stand between you and enemies, attack safely from range, or provide an aura that improves how your build plays.
Before hiring, decide what problem you want the mercenary to solve. A fragile ranged character may value a frontline companion. A character who already controls space well may prefer a support option that improves overall combat flow. The right answer depends on your skills, damage type, gear, and the content you are running.
Rehiring versus reviving
When a mercenary dies, reviving the same hireling preserves the companion you have been leveling and equipping. Hiring a new one is a different decision: it may give you access to another role, skill set, or aura, but it should be done because your current setup no longer fits your build.
Costs and level behavior can differ by game version, so check the current hire or revive screen rather than relying on fixed figures. Remove or review valuable equipment before making changes, and confirm the candidate’s listed features when replacing a mercenary.
Choosing the Right Mercenary for Your Build
Choose a mercenary by function first. Some candidates are valued for auras, some for ranged support, and some for occupying enemies at close range. A popular option is not automatically the best one if it duplicates something your character already does well.
Matching auras, ranged support, and frontline roles
An Act 2 mercenary is often considered when a build wants an aura, but the exact aura choices are not identical across every version and difficulty. Look at the current candidate list and select the aura that supports your intended playstyle rather than choosing based on the act alone.
Ranged support can help a character that wants enemies engaged from a distance, while a frontline hireling can create room for casting, shooting, or repositioning. Neither role makes the mercenary invulnerable. A close-range companion may face more danger, and a ranged companion still needs suitable gear to contribute consistently.
Considerations by character class and damage type
Think about how your class deals damage and how it stays safe. A build that fights in melee may want a companion that adds support or helps control nearby enemies. A caster or ranged build may benefit from someone who intercepts threats before they reach the player. If your damage is already strong but your defenses are weak, prioritize stability over a small offensive gain.
There is no single class-to-mercenary rule that remains correct in every release. Equipment availability, your level, the area you are farming, and the mercenary options displayed in-game can all change the better choice.
| Build need | Mercenary role to consider | What to check |
|---|---|---|
| More room to attack or cast | Frontline presence | Survival, positioning, and defensive equipment |
| Support for overall combat flow | Aura-based option | The aura listed for your version, act, and difficulty |
| Pressure from a safer position | Ranged support | Weapon suitability and whether enemies reach the mercenary |
Equipping and Keeping Your Hireling Alive
A mercenary can equip a weapon, armor, and helm, provided the item requirements are met. These three slots should work together. An impressive weapon does little if the hireling falls immediately, while purely defensive gear may leave them unable to contribute enough in combat.
Weapon, armor, and helm priorities
Start with the role you selected. A mercenary expected to fight up close needs a weapon appropriate for that job, while armor and helm should support staying alive through repeated encounters. Defensive properties, survivability, and the ability to meet item requirements deserve attention before chasing a perfect damage setup.
Item-stat interactions and exact scaling can depend on the game version. Inspect the mercenary’s equipment screen and confirm that the item can actually be used. In Diablo II: Resurrected, a Runeword item may be usable if it fits the mercenary’s slot and requirements, but the specific item and its effects should be verified in your current version.

Positioning, resistances, life leech, and potion use
Gear is only part of mercenary management. Watch where the hireling is standing, especially around dense enemy groups or dangerous attacks. A companion that repeatedly charges into threats may need stronger defenses, different equipment, or a different role altogether.
Resistances and life recovery effects are commonly considered when trying to improve survival, but their precise interaction with a particular item setup should be checked for your version. During combat, players can give mercenaries healing potions. Use that option before a dangerous situation becomes a death-and-revive cycle, particularly when the hireling is holding the front line.
Leveling, Reviving, and Replacing Mercenaries
Mercenaries gain experience and levels while fighting alongside the player. Keeping the same hireling active lets that companion develop alongside your character, which can make a well-supported choice more convenient over time. Still, a higher-level mercenary is not automatically the right mercenary for every task.
Experience gain and level gaps
Let your hireling participate in the areas you are already playing rather than treating leveling as a separate obligation. If there is a noticeable level gap, performance may feel uneven, but exact level scaling and catch-up behavior require checking the relevant version. Focus first on keeping the mercenary alive and equipped for the content you are doing.
Repeated deaths slow down practical progress. If revives become frequent, review positioning and defensive gear before assuming that damage is the only issue. A stable mercenary often provides more value than one built only for peak damage.
When a different mercenary is the better choice
Replace a mercenary when your build has changed, when a new act or difficulty offers a better-fitting option, or when the current companion consistently fails at its intended job. For example, a build that no longer needs a frontline blocker may benefit more from ranged support or an aura option, depending on what is available.
Make the change deliberately. Compare the listed skills or aura, check equipment requirements, and decide whether the new hireling addresses a real weakness. This approach is more reliable than switching simply because another mercenary is widely recommended.
Closing Thoughts
A good mercenary setup begins with a clear role, not a name or a trend. Hire through the appropriate town NPC after unlocking the service, then choose based on the support your character actually lacks. Keep the hireling equipped, use healing potions when needed, and review the setup when deaths become common. Because version, act, and difficulty can change the available options, the in-game hire screen remains the final check.
Useful Things to Know
1. Mercenaries need a weapon, armor, and helm that meet their requirements. 2. They gain experience while fighting with you. 3. You can give them healing potions during combat. 4. Aura and skill options may differ by version, difficulty, and act. 5. Reviving and replacing are separate choices with different purposes.
Key Points
Match the mercenary to your build’s weak point, then protect that investment with balanced equipment and active potion use. Check current in-game options before following a recommendation, especially when choosing an Act 2 aura mercenary or changing game versions.
Frequently Asked Questions
Q1. How do you hire a mercenary in Diablo II?
A1. Complete the quest requirement related to mercenary hiring, then speak with the appropriate town NPC. Review the candidates available in your act, difficulty, and game version before choosing one.
Q2. Which Diablo II mercenary is best for an Act 2 aura?
A2. The best choice depends on the aura currently offered and what your build needs. Act 2 options are often considered for their auras, but the exact choices can vary by version and difficulty, so check the hire screen.
Q3. Can mercenaries use Runeword equipment in Diablo II: Resurrected?
A3. A mercenary can use equipment that fits its weapon, armor, or helm slot and meets its requirements. For a specific Runeword item in Diablo II: Resurrected, verify the item type, requirements, and current version behavior before equipping it.






