Obsessed Artist

Bardic Inspiration (2/Short or Long Rest). As a bonus action, the artist can grant an ally that can hear it a d8 inspiration die if it doesn’t already have one. Once, within 10 minutes, the target can roll the die after rolling an ability check, attack roll, or saving throw but before the GM declares success or failure. The result is added to the total.

Eldritch Symbolism. The obsessed artist has advantage on Intelligence (Arcana), Intelligence (Investigation), and Wisdom (Perception) checks to notice, identify, or bypass magic writing and magic traps. It also has advantage on saving throws against magic traps and the effects of magic items. It can expend two Bardic Inspiration dice to cast glyph of warding without expending a spell slot as an action.

Spellcasting. The artist is a 6th-level spellcaster. Its spellcasting ability is Charisma (spell save DC 12, +4 to hit with spell attacks). It knows the following bard spells:
Cantrips (at will): message, minor illusion,
vicious mockery
1st level (4 slots): cure wounds, hideous laughter, sleep
2nd level (3 slots): enthrall, silence, shatter
3rd level (3 slots): bestow curse, fear,
stinking cloud

Dagger. Melee or Ranged Weapon Attack: +4 to hit, reach 5 ft. or range 20/60 ft., one
target. Hit: 4 (1d4 + 2) piercing damage.

Portrait of Perfect Likeness. The artist can expend a Bardic Inspiration die to cast polymorph without expending a spell slot. It assumes the form of an aberration or monstrosity with challenge rating 1 or less.