Final Fantasy IV/Black magic

Black magic users:
 * Rydia (Summoner)
 * Palom (Black mage)
 * Tellah (Sage; initially he uses random spells, later he learns all white & black magic at once)
 * Fusoya (Lunarian; starts with all white & black magic, but has low MP)

Spell types:
 * Field: spells that can be used outside battle;
 * Support: battle spells that target the allies;
 * Debuff: battle spells that target the enemies but deal no damage;
 * Attack: battle spells that damage the enemies.