Comet (Final Fantasy VII ability)

Comet is a magic spell in Final Fantasy VII granted by the Comet Materia. It is a powerful non-elemental spell that summons a comet to attack a target for heavy damage.

Stats
Comet deals damage in the following formula:
 * $$(80 / 16) * [ (Level + Magical Attack) * 6 ]$$

where "Level" is the caster's current level and "Magical Attack" is their Magic atk stat. This is effectively 5x the base magic damage.

Use
Comet can be used by characters with the Comet Materia at level 1. It deals heavy non-elemental to a target and cannot be reflected. This means that Comet is useful against any enemy and in any situation. Though it cannot exploit a vulnerability to an element, it cannot be resisted by an elemental resistance either.

Comet should be amplified by pairing the Comet Materia with Support Materia. Since it is good against all enemies, it is a great choice to link with Magic Counter. MP Absorb can also mitigate its high MP cost, while HP Absorb can provide durability to spellcasters. MP Turbo or Quadra Magic can amplify its already strong damage to single targets. Unlike most magic, Comet cannot be paired with All.

Comet is one of the strongest spells in the game. Though spells from the Contain Materia are slightly more powerful, they are also elemental, meaning they are easier to resist. Comet is outclassed by Ultima, a non-elemental spell that deals more damage and also hits all targets.