Multiattack

The spectral guardian makes two Spectral Blade attacks. If both attacks hit one creature, the target must succeed on a DC 15 Constitution saving throw or have its hp maximum reduced by the total necrotic damage dealt by both attacks.

Spectral Blade

Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) slashing damage plus 9 (2d8) necrotic damage, and the target must succeed on a DC 14 Wisdom saving throw or be frightened until the end of its next turn.

Spectral Burst

Melee or Ranged Spell Attack: +7 to hit, reach 5 ft. or range 120 ft., one target. Hit: 9 (1d10 + 4) force damage plus 9 (2d8) necrotic damage.

Spellcasting

The arcane guardian casts one of the following spells, requiring no material components and using Charisma as the spellcasting ability (spell save DC 15): At will: dancing lights, fog cloud, minor illusion 3/day each: fear, slow 1/day each: arcane hand