Crota

Armor of the World Eater. Crota's armor is a shell of the power he has as a Hive God. While his armor is intact it has 200 hit points and is immune to all damage, spells, and other effects that would hinder Crota unless it is damage by Weapons of Light (weapons created and forged in the Traveler's Light, such as a Guardians' super ability) or Swords of Sorrow (wielded by Hive Knight Swordbearers). When the shell is broken, his immunities to damage become resistances while he becomes vulnerable to radiant damage instead and he becomes paralyzed for three turns. 
It regains 50 hit points per turn if it's not damaged. 
Additionally, Crota gains 50 temporary hit points for each creature he kills.

Regeneration. Crota regains 25 hit points at the start of his turn if he is missing any. Being dealt any radiant damage stops this effect and Crota dies if his hit points drop to 0 after being dealt radiant damage. If Crota dies, his soul is trapped in his sword. If a living creature touches the sword, he reappears within 30 ft. in an unoccupied space within the sword at full power.

Godly Might. Any attack damage dealt by Crota bypasses all and any damage resistance or immunities. This rule also applies to conditions Crota afflicts upon others. Additionally, creatures killed by Crota have their soul travel to his main Oversoul at which he can decide whether he wants to bring the creature back as if from a true resurrection spell as an action or keep it trapped as he sees fit. Creatures killed by Crota cannot be brought back to life by any means without Crota's intervention.

Aura of the Dread Lord. Every creature within a 120 ft. radius of Crota of his choice must succeed a DC 30 Wisdom save or be frightened of Crota until Crota no longer wants you afraid of him.

Aura of Death. Every creature within a 60 ft. radius of Crota of his choice must take 50 (10d10) necrotic damage per turn spent in the radius.

Size Change. Crota can change his and the size of his sword from Large to Gargantuan.

Multiattack. Crota makes six attacks with his Sword of Crota and one use of his Raise Legion if available and necessary.

Sword of Crota. Crota swings his sword, rendering reality and breaking space and time. Melee/Ranged Weapon Attack: +20 to hit, range 300/600 ft., any targets within a cone up to the attacks range. Hit: 110 (20d10 +10 ) force damage. Targets must make a DC 30 Dexterity saving throw or be thrown 40 ft. away from Crota in a straight line and are petrified on a failed save. If the targets succeed, they are thrown 40 ft. and are paralyzed until their next turn instead. Petrified targets that are in the air shatter when they hit the ground, and if they hit anything while being thrown 40 ft., they also shatter.

Raise Legion (3/Day). Crota raises his fist into the air and brings back all fallen allies within 1,000 ft. of him as if by a true resurrection spell. Allies that are still alive gain 250 temporary hit points and regain all expended spell slots and maximum hit points, are cured of any conditions or diseases, and regain all expended ability charges (such as Second Wing, or Rage, etc.).

Teleport. Crota teleports himself, anything he's wearing, and up to 100 creatures following the same rules anywhere he can see within 300 ft. or to another plane of existence as if by a plane shift spell.

Crota has 2 legendary actions, choosing from the options below. Only one legendary action can be used at a time and only after another creatures turn. Crota regains spent legendary actions at the start of her turn.

Curse of Crota (Costs 1 Actions). Each hostile creature towards Crota and his allies within 60 ft. of Crota has their AC lowered by 10, the gain vulnerability to all damage, and has disadvantage on every ability check, attack, and saving throw for three rounds.

Blessing of Crota (Costs 1 Actions). Each ally within 60 ft. of Crota has their AC increased by 10, gains immunity to all damage, and has advantage on every ability check, attack, and saving throw for three rounds.

Oversoul (Costs 2 Actions). Crota summons a piece of his Oversoul which he weaponizes. Each creature of Crota's choice within a 120 ft. radius must make a DC 30 Constitution save or be obliterated by the blast on a fail or takes 100 (20d10) necrotic damage on a failed save. A creature that has been killed has it's soul absorbed into his main Oversoul.