Spellplague

Spellplague is a hostile Countermeasure Aberration in Baldur's Gate 3 which may appear during the fight Atop the Netherbrain if the player sides with the Emperor. It will appear if a Wizard is present in the party.

Combat

Actions and Abilities

 Main Hand Attack ()   –  Dagger +2

Damage: 6~9

1d4 + 5Piercing

Make a melee attack with your equipped weapon.

 Melee: 1.5 m / 5  ft

 Absorb Intellect ()

Healing: 1~8

1d8Healing

Gobble up a foe's intellect, lowering their Intelligence by 1 per turn and healing your wounds for 5 turns.

 Range: 9 m / 30 ft

Recharge: Short rest

 Magic Missile (+ )

Damage: 6~15

1d4 + 1Force

+ 1d4 + 1Force

+ 1d4 + 1Force

Create three darts of magical force, each dealing 1d4 + 1Force damage to its target.

The darts always hit their target, and can each be targeted individually.

 Range: 18 m / 60 ft

 Disintegrate (+ )

Damage: 50~100

10d6 + 40Force

Shoot a thin green ray from your finger. If the spell reduces the target to 0 hit points, it disintegrates into a crumbly ash.

DEX Save

 Range: 9 m / 30 ft

 Ice Storm (+ )

Damage: 6~40

2d8Bludgeoning

+ 4d6Cold

Impel a storm of hail and ice to crash from the sky, covering the ground and striking all objects and creatures within range, dealing Bludgeoning and Cold damage. It also creates an  Ice surface that lasts 2 turns.

DEX Save

 Range: 18 m / 60 ft

AoE: 6 m / 20 ft (Radius)

 Polymorph (+ )

Transform a creature into a harmless sheep.

If the sheep's Hit Points drop to 0, the target reverts to its original form with its original Hit Points.

WIS Save

 Range: 18 m / 60 ft

 Counterspell (+ )

Try to stop a spell being cast.

If it is higher level than the spell slot you used to Counterspell, you must make a check using your spellcasting ability^{[See Notes]} to prevent it. The check's difficulty is equal to 10 plus the level of the spell you are trying to counter.

This spell can be cast while you are  Silenced.

Loot

• Dagger +2

Notes

• The Spellplague also refers to an important historic phenomenon in the Forgotten Realms setting.