Plasma: GS, TLA, and DD: "Attack with a barrage of bolts." In all games, it appears as a single, wide bolt of purplish-white lightning firing down on the enemy before exploding on impact with the ground, though the bolt is slightly smaller in Golden Sun: Dark Dawn. Plasma is learned at Level 8, hits three targets with Jupiter power of 45, and costs 8 PP to perform.
Shine Plasma: GS and TLA: "Attack with a barrage of bolts"; DD: "Strike with a concentrated flurry of bolts." In the GBA games, it takes on the form of three individual Plasma attacks striking in succession. In Golden Sun: Dark Dawn, it appears as a single wide strike of lightning, followed by an electrical orb sending out rays of lightning which shakes the enemy party violently. Shine Plasma is learned at Level 26, hits five targets with Jupiter power of 100, and costs 18 PP to perform.
Spark Plasma: GS and TLA: "Attack with a barrage of bolts"; DD: "Strike with a coruscating surge of energy." In the GBA games, it appears as a barrage of normal Plasma attacks being volleyed without ceasing into the targeted enemies. In Golden Sun: Dark Dawn, it appears as Shine Plasma does, the orb exploding afterwards in a flash of white light. Spark Plasma is learned at Level 50 for the Wind Seer, Hermit, and Pilgrim Class series, and Level 46 for the White Mage Class series. It hits seven targets for Jupiter power of 180, and costs a tremendous 37 PP to perform.
In Golden Sun: Dark DawnEdit
One of the battle scenes showcased in Golden Sun: Dark Dawn shows Karis selecting and using the Plasma spell to hit an Ogre Titan, which confirms that the spell was the one used in an earlier GameTrailers trailer (pictured). Its visual seems to have been redesigned to bear more resemblance to what one would expect from the Bolt or Ray Psynergy series.