Attack Boost

You may be looking for Attack Upgrade.

Attack Boost (アタックアップ, Atakku Appu, lit. "Attack Up") is an ability that appears in Kingdom Hearts Birth by Sleep and Kingdom Hearts Re:coded. It increases the user's attack strength.

Mechanics

In Kingdom Hearts Birth by Sleep, Attack Boost boosts attack damage by a factor of 1.5.

In Kingdom Hearts Re:coded, Attack Boost increases the user's Strength when their HP is reduced to 25%.

Learning Attack Boost

Kingdom Hearts Birth by Sleep

• The Experiment 626 Dimension Link has Attack Boost as its level 1 ability.

Kingdom Hearts Re:coded

• The Power Armlet has Attack Boost as its ability.