Scan

Scan is the ability that appears in every Kingdom Hearts game except Kingdom Hearts: Chain of Memories and Kingdom Hearts Re:Chain of Memories. It allows the player to view the enemy's HP. In Kingdom Hearts its AP Cost is 1. In Kingdom Hearts II, Roxas learns it at level 4, and its AP Cost is 2. In Kingdom Hearts 358/2 Days, The Ability Panel for Scan is rewarded after completing Mission 04.

Description
View an enemy's HP gauge during battle.

Kingdom Hearts
Sword:
 * LV.15

Staff:
 * LV.9

Shield:
 * LV.12

Trivia

 * Scan is a recurring White Magic spell in the Final Fantasy games. They allow the caster to extract information from any target to check their maximum and current HP, discover their weaknesses and immunities and stats. In some games, it is called Libra.
 * It should be noted that Roxas (or Sora) learns Scan at Level 4, as well.