Grenades Witchhunter Build Guide

The Grenades Witchhunter is one of the most satisfying and accessible builds in patch 0.5 Return of the Ancients. It uses the Mercenary’s grenade ammunition system combined with Witchhunter’s damage amplification against debuffed enemies to create devastating explosions that melt packs and bosses alike. If you like big numbers and screen-filling chaos, this is your build.

Build Overview

Class: Mercenary / Witchhunter Damage Type: Physical/Fire (grenade explosions) Weapon: Crossbow Playstyle: Throw grenades that explode in massive AoE, amplified by Witchhunter’s debuff damage bonus. Simple rotation, huge payoffs.

Why This Build Is A-Tier

The Grenades Witchhunter works because several systems synergize perfectly:

• Grenade mechanics create large AoE explosions that handle both dense packs and single targets
• Witchhunter’s Damage Amplification passively increases damage against any debuffed enemy, which grenades naturally apply through burning, shocking, and staggering
• Crossbow ammunition system lets you swap grenade types on the fly for different situations
• Low gear dependency means you can start mapping with budget rares and still clear efficiently
• Simple rotation makes it accessible to new players while still scaling to endgame content

The main limitation is that grenade travel time can feel sluggish in very tight corridors, and some grenade types have longer wind-up animations. Choosing the right ammunition for the situation is key to maximizing DPS.

Skill Gem Setup

Main Link (6-link)

1. Explosive Grenade (Primary damage skill - the bread and bomb)
2. Larger Area of Effect - Bigger explosions for mapping
3. Faster Projectiles - Quicker grenade throw speed
4. Damage on Ailment - Amplifies damage when enemies are burning/shocked
5. Fire Penetration - Ignores fire resistance for massive DPS increases
6. Increased Critical Strikes - More critical hits for bigger explosion numbers

Alternate Ammunition Slots

The Mercenary’s crossbow lets you swap ammunition types. Set these up as your secondary skills:

• Shock Grenade - Applies shock to enemies, triggering Witchhunter amplification
• Burning Grenade - Applies ignite for sustained fire DoT
• Stun Grenade - Guarantees stagger for safe boss encounters
• Frost Grenade - Chills enemies for crowd control in dense packs

Movement and Utility

• Flicker Strike - Teleport to enemies for repositioning
• Shield Charge - Quick dash with armor break
• Enduring Cry - Warcry that generates charges and applies debuffs
• Herald of Ash - Fire damage aura that synergizes with burning grenades

Auras and Buffs

• War Banner - Damage and accuracy aura
• Precision - Critical strike chance boost
• Determination - Armor and physical damage reduction

Passive Tree Priorities

Key Notables to Target

1. Grenade Damage cluster - Direct multiplier to all grenade skills
2. Witchhunter Ascendancy nodes:
   • Debilitating Blows - Increased damage to debuffed enemies (core synergy)
   • Exploit Weakness - Additional damage amplification stacking
   • Judgment - Critical strike multiplier against marked targets
   • Persecution - Fire and physical damage scaling
   • Executioner - Massive damage bonus when enemies are below 50% life
3. Area of Effect nodes - Bigger grenade explosions
4. Life and Resistances - Standard defensive requirements

Tree Pathing

Start from the Mercenary starting area, moving toward:

• Grenade and ammunition cluster (primary damage)
• Witchhunter Ascendancy nodes (core synergy)
• Life nodes around the Warrior starting zone
• Area of Effect notables for mapping efficiency

Gear Priorities

What to Look For

Weapon (Crossbow):

• High physical DPS
• Grenade damage modifiers
• Attack speed roll
• Critical strike chance

Priority order:

1. Crossbow - your primary damage source and grenade launcher
2. Body Armour - life and resistances
3. Boots - movement speed is essential
4. Helmet - life, resistances
5. Gloves - attack speed and life
6. Quiver/Ammo Pouch - additional damage and grenade modifiers
7. Rings/Amulet - resistances and life
8. Belt - life and resistances

Budget vs Endgame

Budget (Mapping entry):

• Rare crossbow with high physical DPS (~5 Chaos Orbs)
• Full rares with 75% resistances and 3,500+ life
• Basic movement speed boots

Endgame targets:

• High-DPS rare crossbow with grenade-specific modifiers
• Body armour with high life roll and defensive layers
• Movement speed boots with perfect resistances
• Amulet with +grenade skill level

Leveling Path

Act 1-2

• Start with basic crossbow attacks and Explosive Grenade
• Pick up Shock Grenade early for debuff synergy
• Focus on life and grenade damage passives
• Upgrade crossbow every 5-8 levels

Act 3-4

• Full grenade setup with 4+ support gems linked
• Begin working on Witchhunter Ascendancy points
• Aim for 60%+ all resistances
• Start using Enduring Cry for charge generation

Map Entry Checklist

• 75% Fire, Cold, Lightning Resistance
• 4,000+ Maximum Life
• Functional 5-6 link Explosive Grenade setup
• Multiple grenade types available
• Movement skill ready
• War Banner active

Boss Tips

General Strategy

• Apply debuffs first (Shock/Burning Grenade) to trigger Witchhunter amplification
• Then follow up with Explosive Grenade for maximum damage
• Use Stun Grenade during dangerous boss mechanics to create safe windows
• Keep Enduring Cry active for charge generation and debuff application

Specific Boss Approaches

• Arbiter of Ash: Shock Grenade during ground phases, Explosive Grenade for big hits. Stay mobile during fire phases.
• Doryani: Burning Grenade for sustained damage during cast animations. Keep distance during lightning attacks.
• Tavakai: Stun Grenade to interrupt transformation. Explosive Grenade during recovery windows. Kill Jade Statues in phases 1-2 to reduce adds.
• Arbiter of Divinity: Use all grenade types situationally. Shock for damage amplification, Explosive for burst, Stun for safety.

Pros and Cons

Strengths

• Excellent clear speed with massive AoE explosions
• Strong boss damage through debuff synergy
• Very beginner-friendly rotation
• Low gear dependency for league start
• Satisfying gameplay loop (big numbers, big explosions)
• Multiple grenade types add variety and adaptability

Weaknesses

• Grenade travel time can feel slow in tight spaces
• Some grenade types have long wind-up animations
• Fire-based builds can struggle against fire-resistant bosses
• Less mobile than pure melee or projectile builds

Best Matchups

• Open layout maps (explosions fill the screen)
• Boss-heavy content (debuff synergy shines)
• Delirium and expedition (AoE handles packs + rares)

Tough Matchups

• Very tight corridor maps (grenade travel time)
• High fire resistance enemies (swap ammunition types)
• Speed-focused content like Masterminds (slower than dash builds)

Upgrade Path

Short Term (First Week)

1. Get 6-link Explosive Grenade setup
2. Cap all resistances
3. Reach 4,000+ life
4. Unlock Witchhunter Ascendancy nodes

Medium Term (Week 2-3)

1. Craft high-DPS crossbow with grenade modifiers
2. Invest in grenade-specific passive clusters
3. Add Herald of Ash for fire synergy
4. Perfect boot movement speed

Long Term (Endgame)

1. Target best-in-slot crossbow with all grenade modifiers
2. Max out Witchhunter Ascendancy tree
3. Acquire fire penetration jewelry
4. Consider expanding to dual-grenade setups for boss specialization

Related Guides

• Complete Beginner’s Guide
• Classes and Ascendancies
• Boss Mechanics Tier List
• Crafting Guide

Updated for patch 0.5 Return of the Ancients. Last verified: June 2026.