Odin's powered-up form. His improved skills increase his chances of decimating foes.
Raiden appears very similarly to Odin, though he is mostly colored in blue with gold highlights on his armor and a blue cape. He is a tall knight who rides a mostly blue and white horse.
Raiden costs 80 MP to summon. His ability is Shin-Zantetsuken (or True Edge in the original translation), which inflicts Death to all opponents. It has a Hit Rate of 140, works against undead enemies, and will stall an enemy's Final Attack one turn but it will fail on targets immune to Death.
In the original releases, Odin is the only magicite that provides a stat boost to Speed, while Raiden is the only esper that provided the Quick spell. Therefore, many players may choose not to upgrade Odin to upgrade Speed, at the cost of the Quick spell. However, in the Advance and subsequent releases, new added magicite also provide a +2 Speed boost (though others also teach Quick). Players therefore may feel more comfortable upgrading Odin to Raiden.
Raijin, also called Raiden, is a god of thunder and lightning in Japanese mythology.Raiden is the Chinese/Japanese word for the physical phenomena thunder and lightning.