What slot does Eerie Horned Helmet occupy in Mongil: Star Dive?

Eerie Horned Helmet occupies the Hat slot. Each character can equip exactly one piece per slot, so swapping Eerie Horned Helmet replaces whichever hat they had on.

What set does Eerie Horned Helmet belong to?

Eerie Horned Helmet is part of the West Wind set — equip 2 pieces to unlock the first bonus and 4 pieces for the full set.

How do I reinforce Eerie Horned Helmet?

Eerie Horned Helmet reinforces up to level 18 using Enhancement Stones at the equipment forge. Reaching max level requires roughly 956,617 EXP and 2,869,851 gold.

Where does Eerie Horned Helmet drop in Mongil?

Eerie Horned Helmet drops from 5 stages listed in the "Where to farm" section above. Higher-difficulty stages drop the same piece at higher base stat rolls.

Is Eerie Horned Helmet worth investing in?

SSR pieces like Eerie Horned Helmet hit the highest stat ceiling for the Hat slot. Reinforce one full set before spreading materials across alternates.

Mongil Codex · Hat · SSR · West Wind set

Eerie Horned Helmet

5-star SSR

Hat
Earth
SSR

A helmet with horns and a grim visage that exudes a bizarre and eerie aura. The horns, which are imbued with mystical power, are reminiscent of those of the dokkaebi king.

Last updated May 2026 · Verified for the latest Mongil: Star Dive build

Last reviewed by Trakan — May 13, 2026

West Wind set

Equip multiple pieces from the West Wind set to unlock cumulative bonuses.

2-Set[2 Set] Earth DMG +8% for 3s upon using a Basic Attack
4-Set[4 Set] Earth DMG +10% for 5s upon using a Switch Skill on an enemy with Earth Affliction

Stats

Per-level stats — and the reinforcement cost to reach each level. Scrub the slider to see the cumulative EXP, gold, and best-fit Enhancement Stone mix update live.

LevelLv. 18/ 18

HP1,587+585 from Lv. 1

Reinforcement to Lv. 18

Target level: 18Lv.
Cumulative EXP: 717,468EXP
Cumulative gold: 2,869,851Gold

Recommended feed mix to reach Lv. 18

Substats — 2 slots

ATK253
DEF395
HP421
CRIT DMG1,800
CRIT Rate1,080
Fire DEF118
Ice DEF118
Wind DEF118
Lightning DEF118
Earth DEF118
Normal DEF118

Where to farm

Stages and bosses that drop Eerie Horned Helmet, ranked by recommended difficulty.

Duoxini - Difficulty 13DuoxiniLv. 60View on map
Duoxini - Difficulty 14DuoxiniLv. 60View on map
Duoxini - Difficulty 15DuoxiniLv. 60View on map
Drop source
Drop source

Find Eerie Horned Helmet on the interactive mapJump to the boss tile that drops this equipment piece.

Comments

Guides

In-house guides re-tested every patch.

Guides and articles content remains in English.

Mongil: Star Dive — Beginner Guide

Adventure map, jumping, gathering and the first-week checklist — every core mechanic the in-game tutorial walks you through, written in one place.

Trakan

Updated Patch 1.0

Reroll Guide — Best Targets and Stop Conditions

Best characters to chase on a fresh account, the fastest reroll path, and when the meta says you should stop and commit.

Trakan

Updated Patch 1.0

Best Team Comps — Destroyer, Slayer and Flex Slot

How team building actually works in Mongil — the Destroyer + Slayer + flex template the Stagger system rewards, when to break it for element-locked counters, and the Brawler-led sustained-DPS variant.

Trakan

Updated Patch 1.0

Combat Basics — Hold Attacks, Switch Skills, Ultimates

Basic attacks, special skills, switch skills and ultimate timing — the hold-input combat system explained without the in-game popup spam.

Trakan

Updated Patch 1.0

Frequently asked

What slot does Eerie Horned Helmet occupy in Mongil: Star Dive?: Eerie Horned Helmet occupies the Hat slot. Each character can equip exactly one piece per slot, so swapping Eerie Horned Helmet replaces whichever hat they had on.
What set does Eerie Horned Helmet belong to?: Eerie Horned Helmet is part of the West Wind set — equip 2 pieces to unlock the first bonus and 4 pieces for the full set.
How do I reinforce Eerie Horned Helmet?: Eerie Horned Helmet reinforces up to level 18 using Enhancement Stones at the equipment forge. Reaching max level requires roughly 956,617 EXP and 2,869,851 gold.
Where does Eerie Horned Helmet drop in Mongil?: Eerie Horned Helmet drops from 5 stages listed in the "Where to farm" section above. Higher-difficulty stages drop the same piece at higher base stat rolls.
Is Eerie Horned Helmet worth investing in?: SSR pieces like Eerie Horned Helmet hit the highest stat ceiling for the Hat slot. Reinforce one full set before spreading materials across alternates.