Cain, Wielder of Hate

Limited Magic Immunity. Cain can’t be affected or detected by spells of 3rd level or lower unless he wishes to be. He has advantage on saving throws against all other spells and magical effects.

Dark Crusader’s Vigor. Cain is immune to any effect that would reduce his maximum hit points, outright kill him, or set him to 0 hit points.

Hateful Possession. Creatures of Cain’s choice that he can see within 30 feet of him can’t regain hit points and lose all damage resistances. When a creature makes an attack or takes damage within that area, it must succeed on a DC 24 Wisdom saving throw or be Possessed by Hate until it ends its turn outside the area. A creature can choose to fail this saving throw.

A creature that is Possessed by Hate must move toward the nearest creature it can sense (prioritizing non-undead creatures) and use the Attack action. It has advantage on attack rolls, makes one additional attack when it takes the Attack action, and deals an extra 5 fire damage on each hit. Attack rolls against a creature Possessed by Hate have advantage.

If a non-undead creature is reduced to 0 hit points while Possessed by Hate , it is reduced to 1 hit point instead. If this occurs, the creature must succeed on a DC 30 Constitution saving throw when the effect ends or take 999 fire damage. If this damage kills the creature and it is a humanoid, it rises as a revenant (5e SRD) under Cain’s control.

Ingrained Divinity. Cain has fused with the Thread of Hate. If he is destroyed, the Thread shatters into a thousand fragments, preventing it from being claimed again until it reforms over centuries. Each creature within 120 feet of Cain when he is destroyed must make a DC 25 Dexterity saving throw, taking 220 (4d10 × 10) fire damage on a failed save, or half as much on a success. Objects within range take the same damage. For Cain to be truly destroyed, his Mark of Cain must be nullified. A true wish spell, a Legendary cleric’s Divine Intervention, or three uses of the Divine Severance mythical technique can achieve this. Other effects of similar power may also suffice, at the DM’s discretion.

Hateful Strikes. Cain’s attacks are magical and deal an additional 27 (5d10) force damage (included in the attack). Cain’s attacks deal maximum damage against creatures that are Possessed by Hate. If a creature he is attacking survives three of his attacks, Cain deals an extra 100 force damage on each Blade of the Martyr attack against that creature until it dies or leaves his blindsight range.

Mark of Cain. Cain cannot be killed. If he is reduced to 0 hit points, he makes a DC 10 Constitution saving throw. On a success, he drops to 1 hit point instead. Each time he makes this saving throw, the DC increases by 5. On a failure, he falls dormant for 1 minute, then rises with 300 hit points. While dormant, he automatically fails all saving throws.

Multiattack. Cain uses his Murderous Will. He then makes three Blade of the Martyr attacks. Cain can replace any Blade of the Martyr attack with a Reality Slash.

Murderous Will. Each creature that can see Cain within 120 feet of him must succeed on a DC 24 Wisdom saving throw or be Possessed by Hate. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature’s saving throw is successful or the effect ends for it, the creature is immune to Cain’s Murderous Will for the next 24 hours.

Blade of the Martyr. Melee Weapon Attack: + 20 to hit, reach 10 ft., one target. Hit: 22 (4d10) slashing damage plus 27 (5d10) force damage. A creature that is killed by this attack has its soul shattered and cannot be resurrected. Only a Wish spell can restore the soul.

Reality Slash (Costs 1 LP). A cut that tears through reality travels forth in a 120 foot cone in front of Cain. Creatures within that area must make a DC 28 Dexterity saving throw, taking 53 (15d6) slashing damage and 53 (15d6) force damage on a failed save, or half as much on a successful one. This effect effortlessly slices through any obstacle, including planar boundaries and destroys creations of magical force.

Hate for the Arcane (Costs 1 LP). When a creature Cain can see within 120 feet casts a spell, he utters a blasphemous curse. The caster must succeed on a DC 24 Wisdom saving throw or the spell fails, and the creature becomes Possessed by Hate until the end of its next turn.

Cain has 4 Legendary Points (LP). He can use these points to fuel certain abilities. Once he uses a feature or action that consumes a Legendary Point, he cannot use that same ability again until the start of his next turn. Cain regains spent Legendary Points at the start of his turn.

Legendary Resistance. When Cain fails a saving throw, he can expend 1 Legendary Point to succeed instead.

Legendary Endurance. When Cain takes damage, he can expend 1 Legendary Point to reduce the damage taken by 100.

Cleanse Effect. If Cain starts his turn affected by a condition or magical effect of 7th level or lower, he can expend 1 Legendary Point to end the effect. If the effect or condition originates from a spell cast at 8th or 9th level or a Mythical Technique, Cain must expend 2 Legendary Points to end that effect. Effects originating from a 10th-level spell cannot be cleansed in this way.

Cain can take extra actions outside of his turn by expending Legendary Points, choosing from the options below. Only one extra action can be used at a time and only at the end of another creature’s turn.

Apparate (Costs 1 LP). Cain magically teleports, along with any equipment he is wearing or carrying, up to 120 feet to an unoccupied space he can see.

Hateful Bolt (Costs 1 LP). Ranged Spell Attack: +16 to hit, range 120 ft., one target. Hit: 45 (10d8) force damage. A target must succeed on a DC 24 Constitution saving throw or become cursed for 1 minute. While cursed, the creature is unable to regain hit points. A Remove Curse spell or similar effect lifts ends this .

Blade of the Martyr (Costs 2 LP.) Cain makes a Blade of the Martyr attack.

Mark of Murder (Costs 2 LP). A creature within 30 feet of Cain that Cain can see must succeed on a DC 30 Wisdom saving throw or become Possessed by Hate for one minute. At the end of each of its turns, a creature can attempt to end the effect on itself by succeeding on a DC 24 Wisdom saving throw.

Raise Revenants (Costs 2 LP). Cain targets up to five humanoid corpses within 60 feet. They rise as revenants (5e SRD) under his control, permanently Possessed by Hate.

Power Word Hate (Costs 3 LP). Cain utters a word of pure Hate, filling the mind of all creatures within 120 feet with terrible fury. All targets become Possessed by Hate for one minute. At the end of each of its turns, a creature can attempt to end the effect on itself by succeeding on a DC 24 Wisdom saving throw.