Stormcaller, Voice of the Rift-Storm

Deity Tier — Tempest of the Eastern Sea

“Light your beacon, little harbor.I have been waiting for it to go out.”

Origin

The Stormcaller is the will inside the rift-storms. It lives behind the Stormwall, the permanent wall of cloud off Stormwall Point, and every storm that crosses the eastern sea is one of its breaths. Ironstar Harbor was built where it was because the cliffs could hold a beacon high enough to answer it. For as long as the Ironstar Beacon burns, the Stormcaller stays behind the wall. When the Beacon falters, it steps through.

Alignment: Chaotic (Storm incarnate)
Type: Deity / Elemental / Rift
Classification: Tempest Deity
Challenge Rating: 28 (Deity raid)
Threat Level: Coastal — closes every sea route while it walks

Rift-Storm

Wherever the Stormcaller crosses the Stormwall, the coast drowns in its weather:

Lightning strikes metal first — armour, weapons, docks
Wind changes direction every minute
The sea rises over the harbor walls
Flying and climbing become dangerous
Squall Wraiths ride every gust

While the Ironstar Beacon burns at full strength, the storm cannot cross the cliffs.

Base Stats

Armor Class24 (Living Storm)

Hit Points2,960 (32d20 + 1,280)

Speed0 ft., fly 150 ft. (hover)

STR28 (+9)

DEX32 (+11)

CON30 (+10)

INT24 (+7)

WIS26 (+8)

CHA34 (+12)

Saving Throws

Dex +20, Con +19, Wis +17, Cha +21

Skills

Perception +25, Intimidation +29, Acrobatics +29

Damage Resistances

Bludgeoning, piercing and slashing from non-Denseki weapons; cold

Damage Immunities

Lightning, Thunder

Condition Immunities

Grappled, Prone, Restrained, Exhaustion

Senses

Blindsight 300 ft., Truesight 120 ft.; sees through every storm cloud

Languages

Speaks in thunder; understands all

Legendary Resistance

The Stormcaller can succeed on 4 saving throws of its choice per turn.

Beacon Bound

While the Ironstar Beacon is lit, the Stormcaller takes double damage and cannot use Eye of the Storm.

Nightmare Abilities

Rift-LightningAction

Lightning strikes up to six targets, chaining to anyone wearing metal within 15 ft. 8d10 lightning each (DC 27 Dexterity halves).

Gale WallAction

A wall of wind sweeps the headland. Anyone not braced behind cover makes a DC 26 Strength save or is blown toward the cliff edge.

Drowning RainPassive

Rain falls so hard it fills the air. Ranged attacks have disadvantage and fire effects fail.

Eye of the StormAction, Recharge 5–6

Sudden calm: the Stormcaller draws all wind inward, then releases it as a thunderclap (10d10 thunder in 60 ft.).

Snuff the BeaconLegendary Action

Hurls a bolt at the Ironstar Beacon. Each hit dims it; at full dark, Beacon Bound ends.

Call the HeraldsLegendary Action

Summons a Gale Roc or 1d4 Squall Wraiths out of the clouds.

Phases of Stormcaller

I. Gathering Clouds

HP: 100%–75%

The Stormwall bulges; the Stormcaller reaches through.

Keep the Beacon lit — feed it Denseki.
Lightning rods on the headland can be raised.

II. The Stormwall Breaks

HP: 74%–45%

It steps onto the headland in full.

Gale Wall every round; brace or fall.
Squall Wraiths target metal armour.

III. Eye of the Storm

HP: 44%–20%

Sudden, eerie calm — and the raid can fly.

Updrafts lift players to the floating storm-stones.
Strike its core while the eye holds.

IV. Beacon Failing

HP: 19%–1%

It turns everything on the Beacon.

Split the raid: defend the Beacon, finish the storm.
If the Beacon goes dark, the sea rises over the harbor.

V. Clearing Skies

HP: — (Driven behind the Stormwall)

It cannot die — but it can be pushed back.

Beacon held: calm seas and open routes for a season.
Beacon lost: every sea route closed until it is relit.

Lair Effects(Stormwall Point)

The headland's edges crumble into the sea between rounds.
Lightning rods drain Rift-Lightning if raised in time.
Floating storm-stones drift overhead in the eye.
The Ironstar Beacon is visible from the whole fight — and so is the Stormcaller's anger at it.