Damage engine and purpose
Cloud of Bats rewards sustained channeling near the pack. Arachyr, Bakuli and Chiroptera form the engine; Haunt and Locust satisfy the old Ring of Emptiness requirements.
Item, skill and rune names use their English game spelling for unambiguous lookup. Explanations, rotation and limitations are fully translated.
Six skills and runes
| Skill · rune | Function |
|---|---|
| Haunt · Poisoned Spirit | Damage mark for Ring of Emptiness. |
| Firebats · Cloud of Bats | Close-range primary channel; apply marks first. |
| Locust Swarm · Cloud of Insects | Infect target groups for the ring condition. |
| Soul Harvest · Languish | Build stacks and survival protection. |
| Spirit Walk · Honored Guest | Reach Harvest targets safely or escape danger. |
| Hex · Jinx | Refresh Arachyr protection or the enemy debuff. |
Four passive skills
Creeping Death / Confidence Ritual / Grave Injustice / Spirit Vessel
Complete equipment slots
| Slot | Equipped items |
|---|---|
| Head | Arachyr's Visage |
| Shoulders | Arachyr's Mantle |
| Amulet | The Traveler's Pledge |
| Torso | Arachyr's Carapace |
| Wrists | Lakumba's Ornament |
| Hands | Arachyr's Claws |
| Waist | Bakuli Jungle Wraps |
| Legs | Arachyr's Legs |
| Feet | Arachyr's Stride |
| Rings | The Compass Rose + Unity |
| Weapon | Sacred Harvester |
| Offhand | Vile Hive |
Kanai’s Cube: separate powers
| Category | Extracted effect |
|---|---|
| Weapon Power | Staff of Chiroptera |
| Armor Power | Coils of the First Spider |
| Jewelry Power | Ring of Emptiness |
Legendary and normal gems
Legendary gems: Bane of the Stricken / Bane of the Trapped / Taeguk.
Normally use an Emerald in weapon sockets; choose the helm socket for cooldown or Life needs. Match armour sockets to missing main stat or toughness. Seasonal Soul Shards replace helm or weapon gems only in the explicitly identified seasons.
Stats, cooldowns and optimisation
Intelligence, Fire and Firebats damage. Secure Soul Harvest stacks and sufficient Mana first, then critical and channeling damage.
Complete the required legendary powers, correct runes and full set bonuses first. Cooldown reduction combines multiplicatively; do not simply add percentage rolls. Weigh a boss gem against a farming gem according to actual boss-fight length.
Rotation: preparation, damage, refresh
Step 1
Use Spirit Walk to approach the pack and build Soul Harvest/Languish.
Step 2
Apply Locust, Haunt and Hex, then channel Firebats close to enemies.
Step 3
Leave when protection stacks drop or the ground becomes dangerous, then refresh the marking window.
Patch boundaries and verifiable context
This is Arachyr Firebats before the later Corpse Spiders rework. The surviving plan wears Sacred Harvester; the additional Harvest reserve must actually be built.
This active set can be played in Season 17 but receives no Legacy of Nightmares theme bonus.
Check before the next equipment change
Count set pieces before replacing a free armour slot. Equipping and cubing an identical legendary power does not double it. Solo Unity requires a follower wearing the other ring with immortality equipped.
This archive describes the period configuration. A current item database may show new numbers under the same name; those live tooltips do not prove historical multipliers. Old seasonal powers cannot be replayed on current non-seasonal characters.
YOUR NEXT STEP
Your checklist
Saved locally on this device, shared between both languages. This counter measures guide tasks, not game progress.
Sources & editorial reference date
Independently written guidance. Linked sources support verification of game systems, versions and described changes. Editorial reference date: 2026-10-23.
- DiabloFans: dated loadout s12-wd www.diablofans.com