Blacklance Mage

Spellcasting. The Blacklance Mage is a 5th-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 15, +7 to hit with spell attacks). The Blacklance Mage has following wizard spells prepared:
Cantrips (at will): fire bolt, light, message, shocking grasp 
1st level (4 slots): chromatic orb, mage armor, magic missile, shield
2nd level (3 slots): hold person, scorching ray
3rd level (2 slots): counterspell, dispel magic, fireball

Wave of Fire (1/Day). If a mage takes this action, any other mage within 150 ft. of the target area that can see the mage may use their reaction to also take this action. For each mage that takes this action, an area of fire erupts as by the fire storm. 

Shortsword. Melee Weapon Attack: +4 to hit, reach 5 ft., 1 target. Hit: 5 (1d6 + 1) piercing damage. 

Shocking Grasp. Melee Spell Attack: +7 to hit, reach 5 ft., 1 target. Hit: 9 (2d8) lightning damage and the target loses use of its reaction this round. This attack has advantage against creatures wearing metal armor. 

Fire Bolt. Ranged Spell Attack: +7 to hit, range 120 ft., 1 target. Hit: 11 (2d10) fire damage.

Hellish Rebuke (Tiefling variant only). The Blacklance mage may use its reaction to cast hellish rebuke as a 2nd-level spell once per long rest.