Aura of Undeath. If a creature that has taken necrotic damage this turn dies, they are reanimated as a skeleton under the knights control.

Undeath. If the Knight dies, it can make a death save. If it succeeds, it reanimates at half HP. If the Knight dies again, it can make another death save, this time only succeeding on 15's or higher. If it dies again, it can only come back on a 20. If it dies again, it cannot make a death save. If the Knight dies by failing death saves, it comes back in 3 (1d4+1) hours.

Multiattack. The knight makes 2 attacks with it's longsword, or 2 attacks with it's Gravebolt ability.

Longsword. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 11 (1d8 + 8) slashing damage, or 12 (1d10 + 6) slashing damage if used with two hands, and 12 (2d6 + 5) necrotic damage. Any creature hit gets marked.

Gravebolt. Ranged Spell Attack: +6 to hit, range 30/90 ft., two targets. Hit: 12 (2d8 + 3) necrotic damage. Any creatures hit get their movement speed halved until the start of the knights next turn, and is marked.

Necrotic Breath (recharge 5-6) The knight exhales a necrotic field in a 15 foot cone. Each creature in that area must make a DC 16 Constitution saving throw, taking 50 (9d10) necrotic damage on a failed save, or half as much on a successful one.

Parry. The knight adds 4 to it's AC against one melee attack that would hit. To do so, the knight must see the attacker and be wielding a melee weapon. If the attack misses, the knight can make a melee attack against the attacker without adding modifiers.

Pursuit. If a creature that is marked moves away from the knight, the knight can move up to it's speed towards that creature or cast Gravebolt once.