Devil's Sight. Magical darkness doesn't impede Zariel's darkvision.

Legendary Resistance (3/Day). If Zariel fails a saving throw, she can choose to succeed instead.

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

Magic Weapons. Zariel's weapon attacks are magical. When she hits with any weapon, the weapon deals an extra 36 (8d8) fire damage (included in the weapon attacks below).

Regeneration. Zariel regains 20 hit points at the start of her turn. If she takes radiant damage, this trait doesn't function at the start of her next turn. Zariel dies only if she starts her turn with 0 hit points and doesn't regenerate.

Multiattack. Zariel attacks twice with her flail and once with Matalotok. She can substitute Horrid Touch for Matalotok.

Flail. Melee Weapon Attack: +16 to hit, reach 10 ft., one target. Hit: 17 (2d8 + 8) piercing damage plus 36 (8d8) fire damage.

Matalotok (Warhammer). Melee Weapon Attack: +16 to hit, reach 10 ft., one target. Hit: 17 (2d8 + 8) bludgeoning, or 19 (2d10 + 8) bludgeoning damage if used with two hands, plus 36 (8d8) fire damage. In addition, the weapon emits a burst of cold that deals 10 (3d6) cold damage to each creature within 30 feet of it.

Horrid Touch (Recharge 5–6). Zariel touches one creature within 10 feet of her. The target must succeed on a DC 26 Constitution saving throw or take 44 (8d10) necrotic damage and be poisoned for 1 minute. While poisoned in this way, the target is also blinded and deafened. The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Teleport. Zariel magically teleports, along with any equipment she is wearing and carrying, up to 120 feet to an unoccupied space she can see.

Legendary Action Uses: 3. Immediately after another creature's turn, Archduke can expend a use to take one of the following actions. Archduke regains all expended uses at the start of each of their turns.