Turn Resistance. The skeletal mage has advantage on wisdom saving throws against turn undead.
Spellcasting. The skeletal mage is a 6th-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 14, +6 to hit with spell attacks). The skeletal mage has the following Wizard Spells prepared:
• Cantrips (at will): Fire Bolt, Chill Touch, Mage Hand, Minor Illusion
• 1st level (4 slots): Detect Magic, Mage Armor, Magic Missile, Shield
• 2nd level (3 slots): Misty Step, Scorching Ray
• 3rd level (3 slots): Counterspell, LIghtning Bolt, Fly
Quarterstaff. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 3 (1d6) or versatile 4 (1d8) piercing damage.
Skeletal mages are minor spellcasters who have retained both their intelligence and their spellcasting abilities.