How do I get Advanced Combat Theory in Mongil: Star Dive?

Clear 5 dungeon stages to obtain it. 4 quests reward it. Available from 1 in-game vendor. Awarded by 1 progression track entry (Season Pass / login).

What is Advanced Combat Theory used for?

Advanced Combat Theory is a skill material item. Use it directly from your inventory.

Can Advanced Combat Theory be crafted?

Advanced Combat Theory cannot be crafted. It can only be obtained from drops, quests or the listed sources.

What rarity is Advanced Combat Theory?

Advanced Combat Theory is a tier 3 material skill item.

Is Advanced Combat Theory worth farming?

Advanced Combat Theory has no downstream recipes — only farm what you need for active quests or buffs.

Mongil Codex · mongil.items.category.MATERIAL_SKILL

Advanced Combat Theory

Tier 3 item

Rare
mongil.items.category.MATERIAL_SKILL
mongil.items.itemType.MATERIAL_SKILL
Quest reward

「As you continue to refine your techniques, it may benefit you to seek guidance from an expert.」 - An excerpt

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

Last reviewed by Trakan — May 13, 2026

Obtained From

11 sources across 4 categories.

Dungeon clear

Teachings of Fire - Difficulty 4Skills · Lv. 60
Guidance of Wind - Difficulty 4Skills · Lv. 60
Whispers of Earth - Difficulty 4Skills · Lv. 60
Path of Ice - Difficulty 4Skills · Lv. 60
Call of Lightning - Difficulty 4Skills · Lv. 60

Quest reward

Dokkaebi Nightmain · 50% · ×1
Gate Closed Offmain · 50% · ×1
Dohwa's Secret Fruitmain · 50% · ×1
A Worthy Divine Maidenmain · 33.3% · ×1

Shop

Premium Salmon Puree

Daily login

Day 6×1

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

How do I get Advanced Combat Theory in Mongil: Star Dive?: Clear 5 dungeon stages to obtain it. 4 quests reward it. Available from 1 in-game vendor. Awarded by 1 progression track entry (Season Pass / login).
What is Advanced Combat Theory used for?: Advanced Combat Theory is a skill material item. Use it directly from your inventory.
Can Advanced Combat Theory be crafted?: Advanced Combat Theory cannot be crafted. It can only be obtained from drops, quests or the listed sources.
What rarity is Advanced Combat Theory?: Advanced Combat Theory is a tier 3 material skill item.
Is Advanced Combat Theory worth farming?: Advanced Combat Theory has no downstream recipes — only farm what you need for active quests or buffs.