Bone Mason Architect

Fire Absorption. Whenever the bone mason is subjected to fire damage, it takes no damage and regains a number of hit points equal to half the fire damage dealt.

Rejuvenation. Unless its remains are disintegrated
or targeted by dispel magic, a bone mason architect reconstitutes itself with full hit points after 1 hour.

Many-Armed Incantations. Once on each of its turns, the bone mason architect may cast a spell with a casting time of 1 action as a bonus action.

Spellcasting. The architect is a 10th-level spellcaster that uses Wisdom as its spellcasting ability (spell save DC 14; +6 to hit with spell attacks). It has the following cleric spells prepared:

Cantrips (at will): guidance, light, mending, thaumaturgy

1st level (4 slots): bane, command, sanctuary

2nd level (3 slots): heat metal, shatter, spiritual weapon

3rd level (3 slots): dispel magic, sending, spirit guardians

4th level (3 slots): banishment, fabricate

5th level (2 slots): animate objects, flame strike

Heated Claw. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 4 (1d6 + 1 slashing damage) plus 10 (3d6) fire damage.

Radiant Bolt. Ranged Spell Attack: +6 to hit, range 120 ft., one target. Hit: 14 (4d6) radiant damage, and the target must succeed on a DC 14 Constitution saving throw or become blinded until the end of the bone mason’s next turn.