Eldritch Eddy

Large Construct, Chaotic Neutral
NF

Violent, Uncontrolled Magical Whirlwind

Habitat Urban — Treasure None

When magical energy becomes dangerously unstable, it sometimes animates into an eldritch eddy: an uncontrolled whirlwind of Evocation magic that crackles with fire and lightning. Eldritch eddies typically arise where magic use is heavy and irresponsible, such as near a fanatical mage's sanctum, a workshop that churns out magic items, or a library where undertrained scribes work with Spell Scrolls. Eldritch eddies are common in ancient Netheril near the homes and workplaces of famous mages.
Eldritch eddies rampage with one purpose: destroy as much in their paths as possible. Before eldritch eddies manifest, telltale signs signal their arrival. Roll on or choose a result from the Eldritch Eddy Manifestations table to inspire what happens right before an eldritch eddy arises.

Eldritch Eddy Manifestations

1d6Right Before an Eddy Manifests …
1Brightly colored sparks fly through the air like fireworks.
2Spectral images of screaming mages or terrible beasts swirl in a whirlwind.
3Electricity flashes, flames ignite, and the air smells acrid.
4Purple smoke billows into a vortex.
5A geyser of multicolored light shoots from the ground toward the sky.
6The air shimmers, and unsettling laughter booms from all directions.

AC 11

Initiative +1 (11)

HP 144 (17d10 + 51)

Speed 10 ft.; fly 40 ft. (hover)

STR

10 (+0)

Save +0

DEX

12 (+1)

Save +4

CON

16 (+3)

Save +3

INT

12 (+1)

Save +4

WIS

9 (-1)

Save -1

CHA

17 (+3)

Save +6

Saving Throws DEX +4, INT +4, CHA +6

Resistances Force

Immunities Fire, Lightning

Condition Immunities Charmed, Exhaustion, Frightened, Paralyzed, Petrified, Poisoned

Senses Blindsight 60 ft., Passive Perception 9

Languages Understands Common plus one other language but can't speak

CR 6

Traits

Magic Resistance. The eddy has Advantage on saving throws against spells and other magical effects.

Actions

Multiattack. The eddy makes two attacks, using Searing Swipe or Arcane Bolt in any combination.

Searing Swipe. Melee Attack Roll: +6, reach 10 ft. Hit: 13 (3d6 + 3) Fire or Lightning damage (eddy's choice).

Arcane Bolt. Ranged Attack Roll: +6, range 120 ft. Hit: 14 (2d10 + 3) Force damage.

Reactions

Eldritch Overload. Trigger: The eddy takes damage. Response—Strength Saving Throw: DC 14, each creature of the eddy's choice in a 5-foot Emanation originating from the eddy. Failure: 7 (2d6) Force damage, and the target has the Prone condition.