Combo Boost

Combo Boost (コンボアップ) is an ability introduced in Kingdom Hearts II. It allows the user to deal greater damage with increasingly longer attack combos.

Mechanics
In Kingdom Hearts II, Combo Boost is a that increases the damage of a finishing move on the ground relative to the number of hits in the preceding combo. It costs 3 to equip, 5 AP in Kingdom Hearts II Final Mix.

In Kingdom Hearts 358/2 Days, Combo Boost is an that increases the damage inflicted by each hit as the combo continues.

In Kingdom Hearts III, Combo Boost is a that costs 5 AP to equip. It increases the damage of each hit in a ground combo by (number of hits) x 5%.

Kingdom Hearts II

 * Sora learns Combo Boost at level 7 with the Dream Sword, 9 with the Dream Shield, and 17 with the Dream Rod.
 * The Decisive Pumpkin has Combo Boost as its Equipment Ability.

Rings with Combo Boost

 * Soldier Ring

Kingdom Hearts III

 * Sora learns Combo Boost at level 20 with the Power of the Warrior, level 46 with the Power of the Mystic, and level 36 with the Power of the Guardian.
 * The Ultima Weapon has Combo Boost as its equipment ability.

Kombo-Boost