Black Sun Mercenary (Battlemage)

BattleMage. The Battlemage is able to cast spells as well as use a long sword

Spellcasting. The mage is a 3rd-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 12, +4 to hit with spell attacks). The mage has the following wizard spells prepared:
Cantrips (at will): Fire Bolt, Ray of Frost 
1st level (4 slots): Magic Missile, Mage Armor.

2nd level (4 slots): Blindness/Deafness Web.

3rd level (4 slots): Stoneskin dispel magic

4th level (3 slots): control water polymorph

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

Legendary Action. 

Major Image: The Battlemage may use this legendary action no sooner than once per two rounds