EverQuest/Uncommon Spells Tomes and Discs/Koadic's Endless Intellect

Koadic's Endless Intellect, more commonly referred to by the acronym KEI, or as C3 (since it is the third spell in the Clarity line) is a long-lasting mana regeneration buff, and can only be cast by enchanters.

The enchanter must be of level 60 to memorize this spell, and the player you try to cast it on must be of level 45.

This spell can be crafted with research, and it also drops from many various mobs. Here is a quick table with the components needed to make this spell. You must be a Necromancer, Wizard, Magician, or Enchanter to make this spell, and is combined in a Spell Research Kit.