Cristal de rétribution
The Pylon table allows you to combine blue power crystals with yellow power crystals.
According to J.D.'s manual, this combination can be used to create a shield that does damage to enemies.
Fin de la quête
Arranging the crystals on the table, you carefully align the colors. As you push the last one into place, a burst of light fuses the crystals together.
The resulting combination is now yours.