Celestial swap

Celestial Swap is an unaligned spell learned from the Sky Book. It is known by most bosses and several other enemies. It is very MP-draining, but extremely useful in battle. Unlike other unaligned spells, this one can be used by most opponents.

Standard Use
The user chants the spell, the Astrolog appears on the top screen, and the the planets are moved according to the user's will. However, they may only be moved clockwise. This can be used to aura any character except the Hero (as they only become auraed during day/night), presuming the character using the spell has enough MP. Characters can move the planets of their own alignment with less MP consumption.

Aligning the Planets
If the planets are all moved into a line, then a powerful attack will be performed, this attack has variable usefulness throughout the game. Only a few of the bosses, such as Chard, will actually use the spell in an attempt to align the planets. Most will simply aura themselves, or prevent your party from becoming auraed. After the attack is used, the planets will be moved to random locations in their orbits.

Name Origin
Celestial Swap comes from celestial body, which is an object, other than Earth, which exists in the Universe.

Trivia

 * Unique dialogue will come up immediately after the first battle in which this spell is used. For most players, this will be the battle with Mugwort, though it can be seen as early as the first battle with Chard.