Elemental CR 9

The Forgotten Storm

Stat block

A storm with a will: forty years ago the Mad Mage called it down to cover his flight from the castle and told it to bring his apprentice after him. It never found her. Every evening it comes back to Mount Baratok to report, and strikes the place where he stood until the rock turned to glass.

ACHPSpeedCRXP
15152 (16d12+48)10 ft, fly 90 ft95000
STRDEXCONINTWISCHA
18 (+4)20 (+5)16 (+3)8 (-1)12 (+1)10 (+0)
  • Saving throws: DEX +9, WIS +5
  • Resistant: bludgeoning, lightning, piercing, slashing
  • Immune: poison, thunder
  • Condition immunities: exhaustion, grappled, paralyzed, petrified, poisoned, prone, restrained, unconscious
  • Senses: darkvision 60 ft; passive Perception 11
  • Languages: Auran, understands Common but says only one thing

Traits

  • Air Form. Can enter and stay in a creature's space, and slip through gaps an inch wide.
  • Legendary Resistance (1/Day). When the Forgotten Storm fails a saving throw, it can choose to succeed instead, once a day.
  • An Order Never Kept. The Mad Mage called it down to cover his flight from the castle and told it to bring his apprentice after him. It never found her. Every evening it comes back to the mountain to report, and strikes the place where he stood.

Actions

  • Multiattack. The Forgotten Storm makes two Thunderous Slam attacks.
  • Thunderous Slam. Melee Attack Roll: +9, reach 15 ft. Hit: 18 (3d8 + 5) Thunder damage.
  • Lightning. Dexterity Saving Throw: DC 16, up to two creatures the storm can see within 120 feet. Failure: 27 (6d8) Lightning damage. Success: Half damage.
  • Whirlwind. Recharge 4-6. Each Large or smaller creature in its space: DC 16 Str save or 4d10+2 Thunder, flung 20 ft and Prone (half damage only on a success).

Lair actions

  • The Lightning Lands. Every evening the lightning lands here. It comes down on a creature the storm can see: a DC 15 Dexterity saving throw, taking 16 (3d10) Lightning damage on a failure or half as much on a success.

Where you meet it