Metee-kolen-ol

If a creature starts its turn within 30 feet of the metee-kolen-ol and the two of them can see each other, the metee-kolen-ol can force the creature to make a DC 12 Wisdom saving throw if the metee-kolen-ol isn't incapacitated. On a failed save, the creature has its speed halved, and it takes a -2 penalty to its AC and Dexterity saving throws for 1 minute. The creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature's saving throw is successful or the effect ends for it, the creature is immune to the metee-kolen-ol's Wintry Gaze for the next 24 hours.

A creature that isn't surprised can avert its eyes to avoid the saving throw at the start of its turn. If it does so, it can't see the metee-kolen-ol until the start of its next turn, when it can avert its eyes again. If it looks at the metee-kolen-ol in the meantime, it must immediately make the save.

The metee-kolen-ol is a 5th-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 13, +5 to hit with spell attacks). The metee-kolen-ol has the following Wizard spells prepared:

• Cantrips (at will): blade ward, chill touch, light, ray of frost
• 1st level (4 slots): fog cloud, mage armor, ray of sickness
• 2nd level (3 slots): acid arrow, alter self, shatter
• 3rd level (2 slots): dispel magic, sleet storm

Melee or Ranged Weapon Attack: +5 to hit, reach 5 ft. or range 20/60 ft., one creature. 5 (1d4 + 3) piercing damage.