I couldn't finish 'em. Looks like this's gonna get complicated.
Lucifer's attacks include Mow Down and Blade of Fury which hit all characters for physical damage and Aeroja which is the same as the latter, but in the form of wind-elemental magic damage. He also uses Arrogance which debuffs the entire party's P.Atk, P.Def, M.Atk, and M.Def stats as well as buffing his own. Lastly is Two-Faced which he only uses as an immediate counterattack, similar to the Swordmaster's Counter perk. That being said, magic-users are a must when fighting Lucifer.
Lucifer [+] Edit
An enhanced version of Lucifer can also be encountered which has increased stats as well as the passive ability Slow and Steady, which buffs his speed stat to maximum whenever he Defaults.
Lucifer is a Latin word (from lucem ferre), literally meaning "light-bearer". In English, "Lucifer" generally refers to the Devil, although the name is not applied to him in the New Testament. The use of the name "Lucifer" in reference to a fallen angel stems from an interpretation of Isaiah 14:3–20, a passage that speaks of a particular Babylonian King, to whom it gives a title that refers to what in English is called the Day Star or Morning Star (another name for the planet Venus, which appears in the east before the sunrise), as fallen or destined to fall from the heavens or sky. In 2 Peter 1:19 and elsewhere, the same Latin word lucifer is used to refer to the Morning Star, with no relation to the Devil. In post-New Testament times the Latin word lucifer has often been used as a name for the Devil, both in religious writing and in fiction, especially when referring to him before he fell from Heaven. Lucifer is also one of the Seven Princes of Hell, representing the Sin of Pride, often seen as the worst of the Seven Deadly Sins.