Dark Magic (The 4 Heroes of Light)

Dark Magic is a group of spells in Final Fantasy: The 4 Heroes of Light that are used by equipping Tomes bought from various shops. Except for the Break and Death spell, Dark Magic is used to inflict a specific negative status ailments on enemies. Poison and Drain are the only Dark Magic spells that deals damage. Drain has a Magic Attack value, making it the only Dark Magic spell that scales with a character's equipment. Poison takes off 3% from the afflicted HP total each turn it's in effect. Suppress reduces enemies' statuses, making it easier to damage them as well as making it harder for the enemies to damage the party. All Dark Magic spells are compatible in joint attacks.

Etymology
Dark magic is another name for black magic.