Sage

The sage casts one of the following spells, using Intelligence as the spellcasting ability (save DC 14, +6 to hit with spell attacks):

At will: light, mage hand, mending, [object Object]

3/day each: comprehend languages, detect magic, identify, [object Object]

1/day each: dispel magic, levitate, locate object, see invisibility, sending, tongues, unseen servant

Melee Spell Attack: +6 to hit (with advantage if the target is wearing armor made of metal), reach 5 ft., one creature. Hit: 9 (2d8) lightning damage, and the target can't take reactions until the start of its next turn.

When the sage is hit by an attack or targeted by a magic missile spell, it calls forth an invisible barrier of magical force that protects it. Until the start of its next turn, the sage has a +5 bonus to AC, including against the triggering attack, and it takes no damage from magic missile.