Wyrmlord Koth

Surprise Attack. If the bugbear surprises a creature and hits it with an attack during the first round of combat, the target takes an extra 7 (2d6) damage from the attack.

Spellcasting. The spellcaster’s spellcasting ability is Charisma (spell save DC 14, +6 to hit with spell attacks). The spellcaster has following sorcerer spells prepared:

Cantrips (at will):fire bolt, mage hand, minor illusion, prestidigitation

1st level (4 slots): mage armor, charm person, shield

2nd level (3 slots): invisibility, scorching ray

3rd level (3 slots): fireball, fly

4th level (1 slot): death ward

Morningstar. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 11 (2d8 + 2) piercing damage.

Wand of Magic Missiles (7 charges). For one charge, casts the 1st-level version of the magic missile spell; increase the spell slot level by one for each additional charge expended. The wand regains 1d6+1 expended charges daily at dawn. If Koth expends the wand's last charge, roll a d20. On a 1, the wand crumbles into ashes and is destroyed.

Potion of Flying. When Koth drinks this potion, he gains a flying speed equal to his walking speed for 1 hour and can hover. If he's in the air when the potion wears off, he falls unless he has some other means of staying aloft.