What Does Luck Do?

This is a guide to Luck, one of the stats of Fire Emblem: Three Houses. Here we will explain how this stat works, how it affects your units, and how you can use it to optimize your army.

What Does Luck Do?

Luck is one of the eight main stats. It plays a role in upping the critical hit rate gained in battles. You can determine a unit's critical hit rate by looking at the 'Crit' stat displayed when selecting a unit to attack.

As you can see, the same character attacking the same unit has a higher crit after using a Goddess Icon to add +4 Luck.

Hilda's crit rate at 23 Luck

Hilda's crit rate at 27 Luck

How to Increase Luck

You can increase Luck of some units by levelling up, using items, or equipping abilities.

Leveling Up

Whenever a character levels up, some of their stat increase. However, this is cannot be controlled, and you cannot choose to make them increase this skill, unlike the other two options.

Items

You can equip a Goddess Ring to increase a character's luck, or use a Goddess Icon or Miracle Bean to permanently increase their luck.

Equipping Abilities

Certain Abilities increase a character's Luck when equipped. For example, a House Leader's Pomp and Circumstance ability adds +5 Luck and Charm when equipped. To learn how to equip abilities, don't forget to check out our page on How To Learn and Equip Abilities!

Rally Skills

When some units level up their Authority skill, they gain the ability to rally other units, boosting their stats temporarily. Luck is one of the possible boosts provided by Rally.

How to Use Luck

Units with High Dexterity/Critical Chance

Luck stacks with Dexterity to increase a unit's crit rate. While it isn't recommended to focus on it solely for the crit rate because Dexterity does the same thing while increasing hit chance as well, if you have spare Luck items, you can use them to further improve high Dexterity character's crit rate.

Hard/Maddening Difficulties

On normal difficulty, enemies do not land critical hits on you. On higher difficulties, they enemies can possibly kill your units instantly if they land a critical. This makes luck all the more valuable in higher difficulties, especially in Classic Mode when units don't come back.

Related Links

Beginner Guides

Stats and Game Mechanics
What Does Luck Do?	What Does Dexterity Do?
What Does Weight Do?	What Does Charm Do?
What Does Authority Do?	What Does Speed Do?
The Attack Speed Formula	How To Learn and Equip Abilities
Character Guides
Recruitment Guide	Lecture Guide | How to Instruct
Classes That Can Use Magic	List of Unique Classes
Best Classes for Each Character	What Happens When Someone Dies?
How to Change Outfits	-
Battle Guides
How to Beat Demonic Beasts	How to Beat the Death Knight
Gambit Guide	Training Weapons or Iron Weapons?
How Do Linked Attacks Work?	How to Use Divine Pulse
How to Use Auto Battle	List of Terrains
How to Open Doors and Chests	-
Building your Army
Best Characters to Recruit	What Are Adjutants?
How to Repair Weapons	Are Rusted Weapons Worth Forging?
Where to Get Umbral Steel	What is Renown?
Where to Get Advanced Seals	-
Maddening Guides
Maddening Tips and Guide	Best Characters for Maddening
FAQS
What Carries Over To New Game Plus?	How Long Does It Take To Beat FE3H?
Difficulty Levels and Differences	Is There a Weapon Triangle?
Which House Should You Pick?	-