Quadra Magic

Quadra Magic is a support ability in Final Fantasy VII that allows for casting the linked Magic or Summon Materia four times in succession with the MP cost of a single spell, but has its damage cut in half. In this sense, it is similar to the Rapid Fire ability seen in Final Fantasy V, only magical in nature. Quadra Magic doesn't work with Knights of the Round, and if the party casts Escape with Quadra Magic, it will only be cast once. Quadra Magic can be found in a Materia Cave north of Mideel that can be reached with a River, Mountain or Sea Chocobo.

The spell used with Quadra Magic picks a random target out of the chosen party (enemies or allies) and attempts to unleash all four castings on the same target. If the target dies before all four castings are used the sequence stops and all unused castings are lost. Area-of-effect spells simply hit the chosen party four times. Each casting has its damage cut in half including attacks whose damage is based on max HP, like Demi and Full Cure. Status effects that don't have a 100% chance of hitting also have their accuracy cut in half.

It is possible to link multiple Quadra Magic to the same Materia, which will cause the spell to hit an extra time per equipped Materia. E.g. having three Quadra Magics attached to three Fire Materia would cause Fire to cast six times. The maximum is eight spells in succession, if one uses five or more Quadra Magic Materia at once.

If the first spell is reflected, the rest of the spells hit the target the spell was reflected to instead of being reflected again. When cast with W-Magic Materia, the spell is quadrupled both times, meaning the character can cast a spell eight times in succession, or a whopping 16 times in succession if equipping five Quadra Magic Materia at once.