Ragnarok is a special ability present in Kingdom Hearts, it is learnt after Sora's second encounter with Riku, or after Riku is under the possession of Xehanort's Heartless, to be precise. However, it unaccessable once it is learnt because Sora becomes a Heartless immediately after the battle. Sora can only access this ability once his Heart restored by Kairi and series of events.
Ragnarok
AP cost: 4
MP Cost: 3
Description: A flurry of air combos which ends with a laser bursts.
Effect: When close to an airborne enemy, Sora will automatically jump up to the enemy and deliver a series of mid-air slashes. Unlike Sonic Blade or Ars Arcanum, it requires no timing to execute the finisher, Burst; however, it should be noted, the longer Sora charges for the Burst attack on air, the heavier the damage inflicts. Aside from that, the lasers fired also have homing capabilities, which target and destroys nearest foes in sight. Sora can move freely while the lasers home by themselves.