Mirrorbound Lich

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Medium Undead (mirrorbound, legendary undead), Lawful Evil

Armor Class 18 (natural armor)

Hit Points 105 (14d8+42)

Speed 30 ft. fly 40 ft.

STR 12 (+1)

DEX 14 (+2)

CON 16 (+3)

INT 20 (+5)

WIS 16 (+3)

CHA 18 (+4)

Saving Throws Int +8, Wis +6, Cha +7

Skills Arcana +10, Insight +7, Perception +7

Damage Immunities necrotic

Condition Immunities charmed, frightened, poisoned

Senses darkvision 120 ft., passive Perception 17

Languages Common, Draconic, Infernal, telepathy 120 ft.

Challenge 12 (8,400 XP) Proficiency Bonus +3

Legendary Resistance (3/Day). If the creature fails a saving throw, it can choose to succeed instead.

Magic Resistance. The creature has advantage on saving throws against spells and other magical effects.

Mirrorbound. The lich is bound to a sentient mirror shard. While within 60 feet of any reflective surface, it can glimpse a perfect reflection of the last creature it touched. If a creature looks into the shard for more than 1 action, they must succeed on a DC 16 Wisdom saving throw or be haunted by a minor illusion that mimics their fears for 1 minute (as the thaumaturgy of the shard).

Actions

Multiattack. The Mirrorbound Lich makes two Mirror Blade attacks and one Paralyzing Touch attack.

Mirror Blade. Melee weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 13 (2d8+4) necrotic damage. A spectral blade forged from reflected light that gnaws at the target's life force.

Paralyzing Touch. Melee spell Attack: +12 to hit, reach 5 ft., one target. Hit: 10 (3d6) necrotic damage. If this attack hits, the target must succeed on a DC 16 Wisdom saving throw or be paralyzed for 1 minute. The target can repeat the saving throw at the end of each of its turns, ending the effect on a success.

Mirror Shard Burst. Ranged spell Attack: range 120 ft., one target. Hit: 14 (4d6) necrotic damage. The lich fires a shard of mirrored light that saps vitality from a creature it can see. On a hit, the target takes necrotic damage and must succeed on a DC 16 Constitution saving throw or have its speed halved until the end of its next turn.

Legendary Actions

The creature can take 3 legendary actions, choosing from the options below. Only one legendary action can be used at a time and only at the end of another creature's turn. The creature regains spent legendary actions at the start of its turn.

Detect. The lich makes a Wisdom (Perception) check.

Mirror Sliver. The lich targets a mirrored surface within 60 feet. The surface erupts, forcing one creature within 10 feet of the surface to make a DC 16 Wisdom saving throw or have disadvantage on its next attack roll before the end of its next turn.

Phantasmal Echo (Costs 2 Actions). The lich creates a phantasmal duplicate of itself within 30 feet for 1 round. This echo steals a reaction from a target in range and imposes disadvantage on its next saving throw against fear or charm effects.

Environment Underdark, Castle, Urban

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Lore & Description

Appearance

A towering undead archmage wrapped in cracked black ice and shards of a sentient mirror. Its head is a crown of fractured silvery mirrors that refract light into dancing motes that seem to whisper your name. Its phylactery rests within the central shard of the mirror, pulsing with blue-white energy. When it moves, the air smells of cold lilac and the smell of old glass. Its presence warps reflections around it, making staircases appear reversed and windows show alternate versions of the world.

Behavior & Origins

The Mirrorbound Lich was once a powerful archmage who bound their phylactery to a sentient mirror rumored to reflect not just appearances but possible fates. During a catastrophic ritual, the mirror shattered, fusing the lich with its shards. Now the Mirrorbound Lich haunts places of glass and still water, drawing power from reflections and the fear of being seen as weak. It seeks to collect other mirrors to extend its bound realm, trapping intruders within endless corridors of silvered walls. Its strategies rely on misdirection, paralyzing touch, and turning light into necrotic energy, while its bound minions—reflections and glass golems—guard its lair.

Generation Info

Original prompt:
"mirrorbound-lich"

Created: Feb 25, 2026
Modified: May 22, 2026