Atherazaria

Shocking Smite. When Atherazaria hits with a melee weapon attack, she can expend one spell slot to deal 2d8 extra lightning damage to the target plus 1d8 for each spell level higher than 1st (max 5d8) and plus 1d8 against a target suffering from the witch bolt effect (max 6d8 total).

Static Aura. If a creature moves anywhere within 10 ft. of Atherazaria they must make a DC 16 Constitution Saving Throw, on a failed save they take 7 (2d6) lightning damage.

Spellcasting. Atherazaria is a 12th-level spellcaster. Her spellcasting ability is Charisma (spell save DC 16, +8 to hit with spell attacks). She has the following paladin spells prepared:

1st level (4 slots): Absorb elements, Witch bolt, Command

2nd level (3 slots): Aid, Lesser restoration

3rd level (3 slots): Lightning bolt, Revivify

4th level (1 slot): Elemental bane, Find greater steed

Multiattack. Atherazaria makes two attacks with her greatsword Zaxur.

Zaxur. Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) slashing damage and 7 (2d6) lightning damage as an arc of lightning blasts through the target up to 5 ft. wide and 15 ft. long directly behind it, if the attack roll would hit any creature or object in that range it also takes the lightning damage.

Lightning Breath (Recharge 5–6). Atherazia exhales lightning in a 30-foot by 5-foot line. Each creature in that area must make a DC 17 Dexterity saving throw, taking 11 (2d10) lightning damage on a failed save, or half as much damage on a successful one.