Counter Slash

Counter Slash (リベンジスラッシュ), also translated as Retaliating Slash, is an ability introduced in Kingdom Hearts II. It allows the user to perform a counterattack. In Sora's Lion Form, the ability is dubbed Retaliating Smash.

Mechanics
In Kingdom Hearts II, Retaliating Slash is an action ability that costs 3 to equip, while Retaliating Smash is an action ability that is automatically equipped. It is an aerial finisher activated by pressing after being knocked into the air. Unlike Aerial Recovery, it does not provide invulnerability. When executed in Valor Form or Wisdom Form, Sora will simply perform the basic aerial attack of those respective forms.

In Kingdom Hearts III, Counter Slash is an that costs 4  to equip. It is a reprisal activated by pressing after a successful block. It cannot be equipped alongside other reprisals.

Kingdom Hearts II

 * Sora learns Retaliating Slash after defeating the Dark Thorn.
 * Valor Form has Retaliating Slash as a default ability.
 * Wisdom Form has Retaliating Slash as a default ability.
 * Lion Form has Retaliating Smash as a default ability.

Kingdom Hearts III

 * Sora learns Counter Slash after defeating the Nobodies at the Hills.