Kelek

Kelek wears bracers of defense and carries a staff of striking with 10 charges. The staff regains 1d6 + 4 expended charges daily at dawn. If its last charge is expended, roll a d20; on a 1, the staff becomes a nonmagical quarterstaff.

Kelek makes three attacks using Sorcerer's Bolt, Staff of Striking, or a combination of them. He can replace one of the attacks with a use of Spellcasting.

Melee or Ranged Spell Attack +6 to hit, reach 5 ft. or range 60 ft., one target. 13 (2d12) Force damage.

Melee Weapon Attack +8 to hit, reach 5 ft., one target. 8 (1d6 + 5) Bludgeoning damage, or 9 (1d8 + 5) Bludgeoning damage when used with two hands, and Kelek can expend up to 3 of the staff's charges, dealing an extra 3 (1d6) Force damage for each expended charge.

Kelek creates a magical explosion of fire centered on a point he can see within 120 feet of him. Each creature in a 20-foot-radius sphere centered on that point must make a DC 14 Dexterity saving throw, taking 35 (10d6) Fire damage on a failed save, or half as much damage on a successful one.

When he is hit by an attack, Kelek protects himself with an Invisible barrier of magical force. Until the end of his next turn, he gains a +5 bonus to AC, including against the triggering attack.