In MU Online, Breche Mastery is used as a passive or mastery‑type support skill. It is available to: Grow Lancer. The skill requires character level 300, which makes it a mid‑game option for your build. It is a Strength‑based physical skill, so planning your stat points around that attribute will help you get the most out of it. It does not deal direct damage on its own and is instead focused on utility, buffs or passive power. Its Imprint value is 110, which helps you compare how efficiently it benefits from Imprint or mastery upgrades versus other skills in the same tree.

These values reflect the MU Online Season 21 skill data used on MUOnline.ai, so you can check requirements before you invest stat points and plan your PvE and PvP rotations around the skills your class can actually use.

Skill Damage & Requirements

Base Damage 0
Imprint Value 110
Required Level 300
Required Strength 300
Required Dexterity 300
Required Vitality 0
Required Energy 0
Required Command 0
Primary stat orientation Strength‑based physical skill

Eligible Classes & Evolution Stage

  • Grow Lancer 3rd class (2nd evolution quest complete)

The class stage tells you which evolution of a class can use the skill: 1st = starting class, 2nd = after the second class quest, 3rd = third class, 4th = 4th class / majestic, 5th = 5th class evolution.