| Mod | Save | ||
|---|---|---|---|
| STR | 8 | −1 | −1 |
| DEX | 18 | +4 | +4 |
| CON | 20 | +5 | +5 |
| Mod | Save | ||
|---|---|---|---|
| INT | 10 | +0 | +0 |
| WIS | 14 | +2 | +2 |
| CHA | 6 | −2 | −2 |
Swarm
The swarm can occupy another creature’s space and vice versa. The swarm can move through any opening large enough for a shard to pass through (typically the size of a coin). The swarm can't regain hit points or gain temporary hit points.
Reflective Carapace
When a creature hits the swarm with a melee attack while within 5 feet, it takes 5 (1d10) slashing damage from flying shards.
Crystalline Link
If the Crystalline Swarm Minion is within 60 feet of the Glass Hydra, it gains advantage on attack rolls, and its attacks deal an additional 3 (1d6) radiant damage.
Shatter Vulnerability
Thunder damage deals double damage to the swarm.
Refraction
When targeted by radiant or light based attacks the swarm refracts the attacks in multiple directions around itself.
Multiattack
The swarm makes two Crystalline Slash attacks.
Crystalline Slash
Melee Weapon Attack: +7 to hit, reach 0 ft., one target in the swarm’s space.
Hit: 12 (4d4 + 4) slashing damage. If the swarm has lost half its HP or more, this is reduced to 7 (2d4 + 4).
Shard Burst (Recharge 5–6)
The swarm erupts in a violent explosion of spinning fragments.
Each creature within 10 feet must make a DC 15 Dexterity saving throw, taking 17 (5d6) slashing damage on a failed save, or half as much on a success.
If the swarm is within 60 feet of the Glass Hydra, the burst also deals 8 (2d8) radiant damage to all creatures except the boss.
Glistening Swarm
The swarm condenses and spins rapidly, becoming harder to hit. Until the start of its next turn, the swarm gains +2 AC and creatures have disadvantage on opportunity attacks against it.
Description
A Crystalline Swarm Minion is a jittering vortex of razor-edged crystal shards animated by arcane resonance from its crystalline overlord. The shards pulse with inner light, chittering in a sound like cracking glass. Each fragment moves with hive-like precision, slashing and embedding itself into foes while echoing the commands of its crystalline master.
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