Strength Boost (ability)

Strength Boost, also called Strength Burst and Attack Boost, is a series of techniques introduced in Kingdom Hearts Union χ. It allows the user to raise their strength.

Kingdom Hearts Union χ
Strength Boost is a special attack that targets a single enemy. It costs 2 special attack gauges to perform.

A variation of Strength Boost is a special attack that targets all enemies, and costs 3 special attack gauges to perform.

Strength Boost Cost↓ is a special attack that targets a single enemy. It costs 1 special attack gauge to perform.

Strength Boost II is a special attack that targets a single enemy. It costs 3 special attack gauges to perform.

Strength Boost III is a special attack that targets all enemies. It costs 6 special attack gauges to perform.

Strength Boost III Cost↓ is a special attack that targets all enemies. It costs 3 special attack gauges to perform.

Strength Burst is a special attack that targets all enemies. It costs 3 special attack gauges to perform. It slightly restores the user's HP.

Strength Burst & Esuna is a special attack that targets all enemies. It costs 4 special attack gauges to perform. It moderately restores the user's HP, and cures all status ailments.

Strength Burst III is a special attack that targets a single enemy. It costs 3 special attack gauges to perform. It greatly restores the user's HP.

Kingdom Hearts Dark Road
In Kingdom Hearts Dark Road, Attack Boost is a support ability that raises Xehanort's strength by +2 for 10 seconds.

Attack Boost 1 is a sub-ability that raises Xehanort's strength by +1 for 10 seconds.

Attack Boost 2 is a sub-ability that raises Xehanort's strength by +2 for 10 seconds.

Kingdom Hearts Union χ

 * Strength Boost +2 is the special attack for medals, , and.
 * Strength Boost +3 is the special attack for medals, , and.
 * Strength Boost +4 is the special attack for medals, , and.
 * Strength Boost +5 is the special attack for medals, , and.
 * Strength Boost +6 is the special attack for medals, , and.


 * Strength Boost +5 is the special attack for medals and.
 * Strength Boost +6 is the special attack for medals and.


 * Strength Boost Cost↓ +5 is the special attack for medal.
 * Strength Boost Cost↓ +6 is the special attack for medal.


 * Strength Boost II +4 is the special attack for medals and.
 * Strength Boost II +5 is the special attack for medals, , and.
 * Strength Boost II +6 is the special attack for medals, , and.


 * Strength Boost III +4 is the special attack for medal.
 * Strength Boost III +5 is the special attack for medal.
 * Strength Boost III +6 is the special attack for medal.


 * Strength Boost III Cost↓ +5 is the special attack for medal.
 * Strength Boost III Cost↓ +6 is the special attack for medal.


 * Strength Burst +4 is the special attack for medal.


 * Strength Burst & Esuna +5 is the special attack for medal.
 * Strength Burst & Esuna +6 is the special attack for medal.


 * Strength Burst III +5 is the special attack for medal.
 * Strength Burst III +6 is the special attack for medal.

Kingdom Hearts Dark Road

 * The card has Attack Boost as its ability.
 * Eraqus can use Attack Boost.


 * The card has Attack Boost 1 as its sub-ability.


 * The card has Attack Boost 2 as its sub-ability.
 * The card has Attack Boost 2 as its sub-ability.
 * The card has Attack Boost 2 as its sub-ability.
 * The card has Attack Boost 2 as its sub-ability.
 * The card has Attack Boost 2 as its sub-ability.
 * The card has Attack Boost 2 as its sub-ability.
 * The card has Attack Boost 2 as its sub-ability.
 * The card has Attack Boost 2 as its sub-ability.
 * The card has Attack Boost 2 as its sub-ability.