Spellcasting. The Shadowfell Gnome Mage is a 7th-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 14, +6 to hit with spell attacks). It has the following spells prepared:  

• Cantrips (at will): , Minor Illusion, Mage Hand
• 1st level (4 slots): Shield, Magic Missile, Disguise Self
• 2nd level (3 slots): Mirror Image, Misty Step, Ray of Enfeeblement
• 3rd level (3 slots): Counterspell, Vampiric Touch, Fear
• 4th level (1 slot): Greater Invisibility

Undead Fortitude. If damage reduces the Shadowfell Gnome Mage to 0 hit points, it must make a Constitution saving throw with a DC of 5 + the damage taken, unless the damage is radiant or from a critical hit. On a success, the gnome drops to 1 hit point instead.   Shadow Stealth. While in dim light or darkness, the Shadowfell Gnome Mage can take the Hide action as a bonus action.