Gravemind (5e Creature)

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Gargantuan undead, chaotic evil

Armor Class 15 (Natural Armor)
Hit Points 410 (20d20 + 200)
Speed 0 ft.

30 (+10) 1 (-5) 30 (+10) 24 (+7) 17 (+3) 22 (+6)

Saving Throws Con +15, Int +12
Skills Arcana +12, Deception +11, History +12, Religion +12
Damage Vulnerabilities radiant, fire
Senses passive Perception 13
Languages Common, telepathy 1 mile
Challenge 16 (15,000 XP)

Living Fortress Creatures that are Huge or smaller can occupy the Gravemind's space and move through it would any kind of movement penalty.

All-Consuming. The corpse of any creature that is not a construct or elemental that touches the Gravemind is consumed by it, and the Gravemind regains 41 (2d20 + 20) hit points. If the creature was at least Small, its Spore Generation automatically recharges. If the creature was at least Medium, its Pure Form Generation automatically recharges.

Regeneration. The Gravemind regains 20 hit points at the start of its turn. If the Gravemind takes radiant or fire damage, this trait doesn't function at the start of the Gravemind's next turn. The Gravemind can only die by being kept at 0 hit points for 1 month.


Multiattack: The Gravemind makes four Tentacle attacks

Tentacle. Ranged Weapon Attack: +16 to hit, range 120 ft., one target. Hit: 34 (5d8 + 10) bludgeoning damage. If the target is Huge or smaller, it is grappled (escape DC 24) and takes 4 (1d8) bludgeoning damage at the start of each of its turns until the grapple ends. The Gravemind can have up to 10 creatures grappled in this way.

Logic Plague. One creature that is a construct within the Gravemind's space must attempt a DC 24 Intelligence saving throw. On a failure, they are charmed and frightened by the Gravemind until it is no longer within its space.

Spore Generation (Recharge 3-6). The Gravemind creates a flood infection form anywhere within its space.

Pure Form Generation (Recharge 6). The Gravemind creates a flood pure form anywhere within its space.

The Gravemind, [source].

The final stage of a flood infection, the Gravemind is the completed mind of a planetwide infection. While the physical, tentacled form of the Gravemind is often mistaken as the Gravemind itself, a single planet can contain dozens to thousands of these "key minds", forming a lattice through its infection, combat, and pure forms to create a unified planetary brain. With even a single key mind, an infection becomes intelligent enough to commandeer starships to infect other planets, spelling doom for an unprepared galaxy, or even potentially the entire universe.

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