Thunder

Thunder (サンダー), Thundara (サンダラ), and Thundaga (サンダガ) magic are attacks used by Sora, Donald, and other characters and enemies that utilize the element of Electricity. In Kingdom Hearts, Thunder was a more powerful and costly spell than Fire or Blizzard, summoning a barrage of lightning bolts from above to strike an enemy and any other enemies nearby. It cost 1 MP bar to use. In Kingdom Hearts II, Thunder is more or less equal to the other attack spells, summoning a single lightning bolt to strike one enemy. The area of effect increases with Thundara and Thundaga.

Thunder magic will be usable again in Kingdom Hearts Birth by Sleep.

Kingdom Hearts
Thunder: Learned after completing Philoctetes barrel challenge. Power equals Max (MPx2)+14. Thundara: Upgraded after defeating the giant Ursula. Power equals Max (MP*2)+18. Thundaga: Upgraded after defeating Cerberus in the Hades Cup. Power equals Max (MP*2)+22.


 * Note: Though the Olympus Coliseum tournaments are not needed to go through the storyline, you cannot get Thundara before Thunder. When getting any Magic for the first time, the player receives the first level spell or an upgrade. Therefore, if one defeats Giant Ursula before completing Phil's challenge, they will receive Thunder, not Thundara.

Kingdom Hearts: Chain of Memories
Thunder: A Magic Card obtained after defeating Larxene for the first time. Thundara: Stock 2 Thunder Cards. Thundaga: Stock 3 Thunder Cards.

Kingdom Hearts II
Thunder: Defeat the Hydra (Olympus Coliseum) Thundara: Upgraded after the defeat of Storm Rider (Land of Dragons) Thundaga: Upgraded after the defeat of Groundshaker (Pride Lands)

Enemies that use Thunder Magic

 * Yellow Opera
 * Devastator
 * Bookmaster
 * Wizard
 * Ursula
 * Storm Rider
 * Groundshaker
 * Larxene

Other Usage

 * In Kingdom Hearts, the Thunder terms are used to mark the ranks of the Weapon Gummi Blocks.
 * In Kingdom Hearts II, Thunder are used to mark the ranks of the laser-like Lock-On Gummi Blocks.