This is a guide to Dexterity, 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.
| Hilda's hit rate and crit chance at 20 Dex | Hilda's hit rate and crit chance at 22 Dex |
|---|---|
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Dexterity is one of the eight main stats. It affects how often a unit will land an attack and if it will be a critical hit.
You can determine a unit's hit rate and critical hit chance by looking at the stats displayed when selecting a unit to attack, under the labels 'Hit' and 'Crit' respectively.

Whenever a character levels up, each stat has a chance to increase by 1. Some characters have a high chance of to growing their Dexterity while others will rarely have it grow.
| Item | Dexterity Bonus | How to Obtain |
|---|---|---|
| Secret Book | +2 | Battles, Anna's Secret Shop |
| Aillel Pomegranate | +1 | Greenhouse |
You can permanently increase a character's dexterity by using a Secret Book or an Aillel Pomegranate.
Certain Abilities increase a character's dexterity. One particular example is a Cavalier's class mastery ability of Dexterity +4.
How To Learn and Equip Abilities
When some units level up their Authority skill, they gain the ability to rally other units, temporarily boosting their stats. Dexterity is one of the possible boosts provided by Rally.
Killer Swords, Bows, Axes, and Lances all add a bonus to their wielder's critical hit rate. This stacks with the Crit bonus from high Dexterity, greatly increasing a character's chance to hit criticals.
There are different abilities that add Crit when using certain weapons, like Sword Crit +10 or Bow Crit +10.

The Assassin's class mastery ability is Lethality, which can instantly kill whoever the Assassin is attacking. Its trigger percentage is 25% of a character's Dexterity, so high dexterity characters are ideal for this class.
Take note that since this is a class mastery ability, it needs to be equipped, and once a character has it equipped, it affects them even if they change classes.
What Does Dexterity Do?



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