Decorp

Of the attack spells available to the mage, Decorp is the strongest against a single foe. Casting it sends a beam of pure magic power against a foe to sap the life out of it in the most efficient ways possible. Only the strongest foes can hope to survive this attack, whose power against a single foe is unmatched.

Note that it is similar to the cleric's spell Excuun, while P enables the mage to attack multiple foes with this attack.