Ariadne
Medium humanoid (triton),
Hit Points 126 (23d8 + 23)
Speed 30 ft., 30 ft. swim
STR
8 (-1)DEX
16 (+3)CON
12 (+1)INT
10 (+0)WIS
12 (+1)CHA
20 (+5)Skills arcana +11
Damage Resistance Cold
Senses passive perception 11
Languages common, primordial, aquan
Challenge Rating 13 (10,000 xp)
Innate Spellcasting. Ariadne's spellcasting ability is Charisma (spell save DC21, +15 to hit with spell attacks). She can innately cast the following spells, requiring no material components.
At will: alter self, detect magic, gear, ice storm, invisibility1/day each: divine word, symbol (pain only)
Magic Resistance. While wearing her robe of the archmagi, Ariadne has advantage on saving throws against spells and other magical effects.
Actions
Staff of Power. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 5 (1d6+2) bludgeoning damage, or 6 (1d8+2 bludgeoning damage when used with two hands. Ariadne can expend 1 of the staff's charges to deal an extra 3 (1d6) force damage on a hit.
Legendary Actions
Ariadne can take 2 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. Ariadne regains spent legendary actions at the start of their turn.