What slot does Arbiter of Nature occupy in Mongil: Star Dive?

Arbiter of Nature occupies the Coat slot. Each character can equip exactly one piece per slot, so swapping Arbiter of Nature replaces whichever coat they had on.

What set does Arbiter of Nature belong to?

Arbiter of Nature is part of the Arbiter set — equip 2 pieces to unlock the first bonus and 4 pieces for the full set.

How do I reinforce Arbiter of Nature?

Arbiter of Nature 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 Arbiter of Nature drop in Mongil?

Arbiter of Nature drops from 6 stages listed in the "Where to farm" section above. Higher-difficulty stages drop the same piece at higher base stat rolls.

Is Arbiter of Nature worth investing in?

SSR pieces like Arbiter of Nature hit the highest stat ceiling for the Coat slot. Reinforce one full set before spreading materials across alternates.

Mongil Codex · Coat · SSR · Arbiter set

Arbiter of Nature

5-star SSR

Coat
Ice
SSR

The legacy of the warden who represents the balance among all living beings. This armor carries the will of those who protect the forest and nature.

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

Last reviewed by Trakan — May 13, 2026

Arbiter set

Equip multiple pieces from the Arbiter set to unlock cumulative bonuses.

2-Set[2 Set] Ice DMG +10% for 5s upon using a Switch Skill
4-Set[4 Set] Ice DMG +10% upon attacking an enemy with Ice 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

DEF1,388+511 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 Arbiter of Nature, ranked by recommended difficulty.

Drop sourceView on map
Custos - Difficulty 13CustosLv. 60View on map
Custos - Difficulty 14CustosLv. 60View on map
Custos - Difficulty 15CustosLv. 60View on map
Drop source
Drop source

Find Arbiter of Nature 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 Arbiter of Nature occupy in Mongil: Star Dive?: Arbiter of Nature occupies the Coat slot. Each character can equip exactly one piece per slot, so swapping Arbiter of Nature replaces whichever coat they had on.
What set does Arbiter of Nature belong to?: Arbiter of Nature is part of the Arbiter set — equip 2 pieces to unlock the first bonus and 4 pieces for the full set.
How do I reinforce Arbiter of Nature?: Arbiter of Nature 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 Arbiter of Nature drop in Mongil?: Arbiter of Nature drops from 6 stages listed in the "Where to farm" section above. Higher-difficulty stages drop the same piece at higher base stat rolls.
Is Arbiter of Nature worth investing in?: SSR pieces like Arbiter of Nature hit the highest stat ceiling for the Coat slot. Reinforce one full set before spreading materials across alternates.