Medium Humanoid, Any Alignment
Armor Class 20
Hit Points 100 (10d20)
Speed 50 ft.
STR
15 (+2)
DEX
15 (+2)
CON
15 (+2)
INT
15 (+2)
WIS
15 (+2)
CHA
15 (+2)
Saving Throws STR +7, CHA +7
Senses Passive Perception 10
Languages Common
Challenge 15 (13,000 XP)
Proficiency Bonus +5
Traits

it is a 5th level spell caster it can cast 3 spells per turn without expensing a spell slot

cantrips:eldritch blast, booming blade

1st level:chaos bolt, magic missile

2nd level:branding smite, darkness 

3rd level:fireball, lightning bolt

4th level:storm sphere, vitriolic sphere

5th level:wall of force, wall of light

Actions

spear. Melee Weapon Attack: +5 to hit, reach 5 ft., 1 target. Hit: (2d8) [piecing] damage. 

chickenwobb