Cassius Moonridge: The Wayward Demigod

Demigod Blood. Cassius is immune to the Frightened condition, and has resistance to Radiant and Necrotic damage. In addition to this, he is both considered a Humanoid and a Celestial. 

Spellblade. Cassius has an arcane bond with Stormcutter, allowing him to magically disipate it or summon it at will. In addition to this, his arcane power seeps into the blade, causing it to deal an additional +5 points of damage on a hit (included in attack). 

Pact Holder. Due to his powerful magics, Cassius has many innate magical powers and regains his normal spells on a short or Long rest. In addition to this, once per day, he may meditate on his divine spark for 1 minute and regain all expended spells (including Unleashed Arcanum). 

Innate Spellcasting. Cassius' innate spellcasting ability is Charisma (spell save DC 22, +14 to hit with spell attacks). He can innately cast the following spells, requiring no material components:

At will (Cantrips): eldritch blast (see “Actions” below), minor illusion, Light, Mage Hand, Mold Earth, Prestidigitation, Shocking Grasp

At Will (Innate Powers): Invisibility. Speak with Animals, Alter Self, Water Breathing

5th level (4 slots): Banishing Smite, Cone of Cold, Contact Other Plane, Counterspell, Dimension Door, Dispel Magic, Hellish Rebuke, Hold Monster, Hypnotic Pattern, Planar Binding, scrying, Spirit Shroud, Suggestion, Teleportation Circle, Thunder Step 

Unleashed Arcanum (1/day each):Mass Suggestion, Plane Shift, Dominate Monster, True Polymorph. 

Eldritch Smite. Once per turn when Cassius hits a creature with an attack, he can expend a spell slot to deal an extra 6d8 force damage to the target. Additionally, if the target of this attack is Huge or Smaller, it falls prone. 

Otherworldy Luck (4/short rest). Cassius is renown for his innate coordination with fate itself. Cassius has 4 Luck points. When Cassius makes an attack roll (or an attack roll is made against him), ability check, or saviong throw he may spend a luck point to reroll and choose which of the rolls he takes. In addition to this, if a saving throw is made within 60ft. of him, he may expend a luck point to force a reroll of the same nature. If he and another creature both have a "Luck" ability enacted on a roll, only his roll is considered. 

Alert. Cassius cannot be surprised and gains a +5 bonus to Initiative checks, for a total of +8 to the roll. 

Medium Armor Master. Wearing medium armor doesn't give Cassius Disadvantage on Dexterity (Stealth) checks, and he can add an additional point of dexterity to his AC when wearing medium armor. 

Battlemage. Cassius has advantage on CON saves made to maintain concentration on a spell. 

Special Equipment. Cassius weilds a The Amber Paddock, a Sentinel Shield, a Ring of the Shield, a +2 Breastplate of Lightning resistance, and Sjomansvind: The Stormcutter. 

Ring of the Shield. Cassius' magical ring grants him a +2 bonus to his Armor Class as well as on all saving throws. 

Sjomansvind: The Stormcutter. Cassius weild's a powerful divine artifact never seen or written of by historians; its powers exeed that of a Vestige of Divergence. With it he gains the following magical abilities:

• Cassius has a fly speed of 50ft. and if he's granted a fly speed by any spell or magical effect he gains a +20ft bonus to that fly speed. 
• If he wishes, he can increase the brightness of his lightning charged blade (see "Actions" below) all Aberrations or Fiends within this light have disadvantage on attack rolls and ability checks . 
• When Cassius casts the True Polymorph spell, he has the ability to transform into a Solar 
• Spellcasting: The ancient stones of storm magic power Stormcutter, granting access to potent arcana. Cassius gains a +3 magical bonus to his spell save DC and spell attack modifier (for his total of 22). In addition to this, the sword contains 12 magical charges, regaining 2d6+3 charges after each Long Rest. Cassius may use these charges to cast the following spells:  Zone of Truth (2 charges), Erupting Earth(3-9 charges) He may upcast this spell by using more charges, Control Water (4 charges), Control Winds (5 charges), Heal(7 charges)

Multiattack. Cassius can make two attacks with any weapon, or he Shoots four Eldritch Blasts.

Stormcutter. Melee Weapon Attack: +14 to hit, reach 5 ft., one target. Hit: 17 (1d8 + 13) slashing damage and 4 (1d8) lightning damage. 

Eldritch Blast (Cantrip). Ranged Spell Attack: +14 to hit, range 120 ft., up to 4 creatures. Hit: 5 (1d10+5) force damage.

Healing Hands (1/Day). Cassius can restore 20 HP on a creature he touches. 

Tempestuous Form (1/Day). Cassius unleashes the divine energy within himself, causing his eyes to turn into pools of lightning and two electric, acrcane wings to sprout from his back. These wings grant him a flying speed of 30ft. The instant he transforms, any creatures within 15 feet of him must succeed on a Dexterity saving throw (DC 22). If a creatures fails this save, they are struck by his wings, taking 18 (4d8) lightning damage and are [condition]Stunned[/condtion] until the end of his next turn. If a creature succeds on this saving throw they suffer no effect. 

Cassius' transformation lasts for 1 minute or until he ends it as a bonus action. During its duration, once on each of his turns, he can deal additional 20 Lightning damage to one target when he deals damage to it with an attack or a spell.

Curse of the Storm.  As a bonus action, Cassius chooses one creature he can see within 30 feet. The target is cursed for 1 minute. The curse ends early if the target dies, if the curse is moved onto a different target (as a Bonus Action), or if Cassius dies/is incapacitated. Until the curse ends, Cassius gains the following benefits:

• Cassius gains a +6 bonus to damage rolls against the cursed target.
• Any attack roll Cassius makes against the cursed target is a critical hit on a roll of 19 or 20 on the d20.
• If the cursed target dies, Cassius regains 25 hit points. He may only gain the HP benefit of this curse once per short rest. 

Quickened Magic (1/Day). When Cassius casts a spell that has a casting time of 1 action, he can change the casting time to 1 bonus action for this casting.

Armor of the Storm. If the target cursed by Cassius' Curse of the Storm hits Cassius with an attack roll, He can use his reaction to roll a d6. On a 4 or higher, the attack instead misses, regardless of its roll.

Battlemage (Reaction). Cassius can use his reaction to make an opportunity attack to instead cast a spell that has a casting time of one action and targets only that creature.

Cassius can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. Cassius regains spent legendary actions at the start of his turn.

Cantrip. Cassius casts a cantrip (excepting Eldritch Blast). 

Attack. Cassius makes a weapon attack. 

Spellcasting (Costs 2 Actions).  Cassius Casts a Leveled spell (accepting Eldritch Blast).