If you want these souls Demon, you have to go through me!!
~ Lucius to the Deliora.
Lucius Heartfilia was once of a member of the Heartfilia family, the older brother of Lucy Heartfilia and the Soul DragonSlayer.
in Tamriel, he then finds out he's the Dragonborn, the world's greatest and most powerful Dragon Slayer. The Dragonborn is also the only possible Dragon Slayer who has the capability to slay Acnologia.
Celestial Spirit Magic: Lucius is able to use summon Celestial Spirits use Gate Keys, to which helps him in comba. He is able to make contracts, and form pacts with the Spiritual beings, to which helps him what days to summon or not. However, he did create a Emergency Contract to which he can summon the Spirits is absolutely required.
Force Gate Closure: Like all Celestial Spirit Mages, Lucius can close the gate of any Celestial Spirits he has contracted with at will, and againts their will.
Multiple Summons: Shown when Delora attacked, Lucius was able to summon the total of his 5 most strongest Celestial Spirits to help him fight Deliora, gving time for the citizens to evacuate.
Lightning Magic: Lucius wished to learn the usage Lightning Magfic. Heading to the town Tonitrua, Lucius leant some basic spells of this magic.
Sparks: A Lightning Magic that fires a continous wall of elecricity. It deals damage the target's Magic Power, draining their magical energies faster due to the electricity's interactions with Ethernano, causing it to break apart, thus the magical energy would break down. However, this spell is one of the most basic of Lightning Magic spells on any continent.
Take-Over: Lucius is able to perform a type of Take-Over, allowing him to possess the attribute of the Dragon Slayer Magic.
Knowledge Absorption: By gaining the absorbed dragon's soul, he also gains knowledge from the dragon as well, knowledge that allows him to instantly know, and master over a magnitude of Dragon Slayer Magics.
Unrelenting Force: A Sky Dragon Slayer spell, using his lungs, and calling the one of the Words of Power, he is able to unleash wind that be able to knock over people, and creatures. Saying all of the Words of Power, his Unrelenting Force be will so powerful, it will even stagger Dragons, and even knocking them over.
Enhanced Strength: Lucius has shown to possess incredible strength, able to wield many melee weapons effortlessly. When he joined the Imperial Legion, he has been using a longsword with a single hand (but by design, is made as a two-handed weapon). Using his magic on his left hand, Lucius is able to wield the Longsword with ease, with no discomfort, or any form of stress.
Words of Power: He may have the Dragon Slayer Magics, but he must seek out the individual spells, from the dragons themselves, or on the Wall of Power found throughout the world. However, Lucius may obtain a single basic spell from a Dragon soul
Take-Over: Lucius must encounter, and touch the Dragon Slayer in order to obtain the capability for that magic.
He must still require to seek out the spells, however, he may obtain a random spell from the Slayer.
The items Lucius carries as an Celestial Spirit Mage.