Thunderclap Psynergy series

Thunderclap, Thunderbolt, and Thunderhead are a series of Jupiter attack Psynergy featured in both games, although in Golden Sun, Thunderhead was called Thunderstorm. However, that name caused problems with fitting text into single lines, so it was changed to the shorter Thunderhead for The Lost Age. The Thunderclap techniques are all Jupiter aligned. It is available to the NInja class series. Hence, all of the adepts in your party, except for Mia and Piers, can use this series of Psynergy.

This Psynergy series is nearly identical to the Plasma Psynergy series.

Psynergy spells
Thunderclap is the first spell of the series. It is described as an "attack with the storm's fury." It appears as a single, wide bolt of purplish-white lightning firing down on the enemy before exploding on impact with the ground. Thunderclap is learned at Level 8, hits three targets with Jupiter power of 50, and costs 9 PP to perform.

Thunderbolt is the second ability learned. It is described as an "attack with the storm's fury." It takes on the form of three individual Thunderclap attacks striking in succession. Thunderbolt is learned at Level 26, hits five targets with Jupiter power of 110, and costs 19 PP to perform.

Thunderhead is the third and final power in the series. It is also described as an"attack with the storm's fury." It appears as a barrage of normal Thunderclap attacks being volleyed without ceasing into the targeted enemies. Thunderhead is learned at Level 50 and it hits seven targets for Jupiter power of 190, and costs a tremendous 39 PP to perform; it is, in fact, the most expensive Psynergy in the Golden Sun series. Although originally called Thunderstorm in the first game, this was too long for the single line alloted to it, causing some display glitches that sometimes occur when it is highlighted. So, in The Lost Age this was changed to the current name of Thunderhead.

Analysis
Unlike most of the psynergy available to the Ninja class, Thunderclap is actually stronger than the psynergy it is similar too, plasma. Plasma is considered one of the strongest moves in the game, and thunderclap is actually better. The only potential pitfall to this is the high level at which it is learned, 50, and the fact that it requires a lot of psynergy, the most of any psynergy in either game. This is offset by the large pool of psynergy that a ninja receives, with the master receiving a 160% bonus.