Lahnis

When Lahnis casts an evocation spell that forces other creatures it can see to make a saving throw, it can choose a number of them equal to 1 + the spell's level. These creatures automatically succeed on their saving throws against the spell. If a successful save means a chosen creature would take half damage from the spell, it instead takes no damage from it.

Lahnis is a 12th-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 15, +7 to hit with spell attacks). Lahnis has the following wizard spells prepared:

• Cantrips (at will): fire bolt, light, prestidigitation, ray of frost*
• 1st level (4 slots): burning hands, mage armor, magic missile
• 2nd level (3 slots): mirror image, misty step, shatter*
• 3rd level (3 slots): counterspell, fireball, lightning bolt
• 4th level (3 slots): ice storm*, stoneskin
• 5th level (2 slots): Bigby's hand, cone of cold
• 6th level (1 slots): chain lightning, wall of ice

*Evocation spell

Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 2 (1d6 - 1) bludgeoning damage, or 3 (1d8 - 1) bludgeoning damage if used with two hands.