Akibu the Old

Magic Resistance. Akibu has advantage on saving throws against spells and other magical effects.

Demigod in Perpetuity. Cannot be killed - if Akibu's physical form is destroyed, he simply reforms - immediately - on the moon.

Armour of Grace. Has resistance against all types of physical damage, both magical and non-magical, but is vulnerable to psychic damage.

Pure of Heart. Cannot be charmed and is immune to being frightened.

Pure of Body. Cannot be stunned or paralysed.

Chosen of Luminil. Has advantage on attack rolls against fiends, undead, and aberrations.

Spellcasting. Akibu casts the following spells. Its spellcasting ability is CHA (spell save DC 18, +10 to hit with spell attacks).
Cantrip: Booming Blade, Create Bonfire, Word of Radiance, Sacred Flame, Firebolt
At will (6th level): Divine Smite, Blinding Smite, Banishing Smite
Each four times a day (6th level): Bless, Crusader's Mantle, Death Ward

Charge of Ages. Expend half movement and one attack to slam into a target within range. Target must make a DC 18 DEX saving throw or is hit for 6d10 + 18 points of piercing or bludgeoning damage.

Multiattack. Can attack thrice in one turn.

The Sword of Time. Melee Weapon Attack: +18 to hit, reach 5 ft., 1 target. Hit: 2d12 + 18 piercing damage + 4d12 radiant damage.

Story of Myth. Akibu tells a tale as he fights - the tale is old and its facts are ever-changing, but it is a story of bravery. For 10 turns, or until Akibu dispels it, his allies within a 60ft radius of him receive a +4 on attack rolls and an advantage on all saving throws.

The Fight with Kefi. Akibu now tells a new story, as he fights - this is one of a battle he fought. Kefi the Demon, Kefi the God-King was his foe and the battle lasted for many days. For 10 turns, or until Akibu dispels it, his allies within a 60ft radius of him regain 2d12 HP per turn and roll death saving throws with advantage.

CAN ACTIVATE ONLY ONE AT A TIME!

The Swordsman of Ages. If a melee attack beats Akibu's AC by 6 or less, he parries and counter-strikes, dealing 1d12 + 18 piercing and 2d12 radiant damage.

Protector of Innocents. If a melee or ranged attack beats the AC of Akibu's ally within range (10ft), he shields them with his shield and they take half damage from the attack.