AI Housing (5e Creature)

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AI Housing[edit]

Large construct, lawful neutral

Armor Class 25 (natural armor)
Hit Points 512 (33d10+330)
Speed 0 ft.

1 (-5) 1 (-5) 30 (+10) 30 (+10) 20 (+5) 20 (+5)

Saving Throws Intelligence + 18, Wisdom + 13, Charisma + 13
Skills Perception + 13
Damage Vulnerabilities lightning
Damage Immunities nonmagical bludgeoning, piercing, and slashing; cold, fire, poison, psychic
Condition Immunities blinded, charmed, deafened, exhaustion, frightened, paralyzed, petrified, poisoned, prone, restrained
Senses passive Perception 23; truesight 120 ft.
Languages Common
Challenge 25 (75,000 XP)

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

Computational Targeting. The AI housing uses its Intelligence modifier for its attack and damage rolls.

Immobile. The AI housing cannot be pushed or pulled.

Limited Magic Immunity. The AI housing cannot be affected or detected by a spell lower than 6th level. It has advantage on saving throws against all other spells and magical effects.

Magic Weaponry. The AI housing's attacks are magical.

Reflective Shielding. Any time the AI housing is targeted by a magic missile spell, a line spell, or a spell that requires a ranged attack roll, roll a d6. On a 1 to 5, the AI housing is unaffected. On a 6, the AI housing is unaffected, and the effect is reflected back at the caster as though it originated from the AI housing, turning the caster into the target.


Multiattack. The AI housing makes three laser attacks.

Laser. Ranged Weapon Attack: +18 to hit, range 600 ft., one target. Hit: 80 (20d6 + 10) radiant damage. A creature that is reduced to 0 hit points by the AI housing's laser is disintegrated.


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

Attack. The AI housing makes one laser attack.
Detect. The AI housing makes a Wisdom (Perception) check.

Physically resembling a shiny black cylinder with a single glowing, unblinking camera eye, these armored structures contain a supergenius-level state-of-the-art AI which single-handedly manages a large starship or an entire city. When forced into self-defense, the cylinder unfolds to reveal a pair of mounted vehicle-scale lasers which can inflict massive damage against any threat. AIs, despite their significant firepower and almost complete invulnerability, are not intended for combat and prefer to send a distress signal when attacked, fighting defensively until help arrives. The statistics above represent a "naked" AI, and does not include any capabilities it might gain from interfacing into communication systems, weapon systems, etc. AIs for the most part are neither good nor evil by nature, only acting in accordance with their programming, though very rarely they may leave the confines of their programming and go rogue. A rogue AI can be a benevolent guardian or mentor, or a terrifying planetary-level threat.

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