| Mod | Save | ||
|---|---|---|---|
| STR | 14 | +2 | +2 |
| DEX | 20 | +5 | +5 |
| CON | 22 | +6 | +6 |
| Mod | Save | ||
|---|---|---|---|
| INT | 12 | +1 | +1 |
| WIS | 16 | +3 | +3 |
| CHA | 8 | −1 | −1 |
Swarm Form
The swarm can occupy another creature’s space, and another creature can occupy its space. The swarm cannot regain hit points or gain temporary hit points.
Knowledge Assault
A creature that starts its turn within 10 feet of the swarm must succeed on a DC 18 Intelligence saving throw or take 11 (2d10) psychic damage as a barrage of disjointed knowledge invades its mind.
Page Slice
When the swarm makes an opportunity attack, it deals an extra 5 (1d10) slashing damage from whipping razor-sharp page edges.
Shapechanger
The swarm can change shape to appear as a single unmoving pile, shelf, or stack of books. This requires no action. Spotting the mimicry requires a DC 20 Intelligence (Investigation) check.
Multiattack
The swarm makes four Book Strike attacks.
Book Strike (Bite).
Melee Weapon Attack: +12 to hit, reach 5 ft., one target.
Hit: 16 (2d10 + 5) slashing damage.
Flurry of Pages (Recharge 5–6)
The swarm unleashes a violent cyclone of shredding pages. Each creature in a 20-foot radius must make a DC 18 Dexterity saving throw, taking 22 (4d10) slashing damage + 16 (3d10) psychic damage on a failed save, or half as much on a success.
The Book Mimic Swarm 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 swarm regains spent legendary actions at the start of its turn.
Bite
The swarm makes one Book Strike attack.
Page Lash
The swarm whips out a ribbon of books.
Each creature in a 10-foot line must succeed on a DC 18 Dexterity saving throw, taking 11 (2d10) slashing damage on a failure and is knocked prone.
Envelop (Costs 2 Actions)
The swarm engulfs one Medium or smaller creature in its space.
The target is restrained until the end of the swarm’s next turn.
A creature can attempt to escape early with a DC 18 Strength (Athletics) or Dexterity (Acrobatics) check at the end of its own turn.
Description
A Book Mimic Swarm is a writhing cyclone of living tomes—hundreds of tiny mimics disguised as dusty hardbacks and ancient volumes. When disturbed, they erupt into a churning storm of gnashing pages, snapping covers, and paper-cut slashes. Their collective mind hums with fractured lore and predatory instinct.
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