Storm Giant

Huge Giant, Chaotic Good

AC: 16

Initiative: +7 (17)

HP: 230 (20d12 + 100)

Speed: 50 ft., fly 25 ft. (hover), swim 50 ft.

STR: 29 (+9)
DEX: 14 (+2)
CON: 20 (+5)
INT: 16 (+3)
WIS: 20 (+5)
CHA: 18 (+4)

Saving Throws: Str +14, Con +10, Wis +10, Cha +9

Skills: Arcana +8, Athletics +14, History +8, Perception +10

Resistances: cold

Immunities: lightning; thunder

Senses: Darkvision 120 ft., Truesight 30 ft., Passive Perception 20

Languages: Common, Giant

CR: 13 (XP 10,000; PB +5)

Habitat: Coastal, Underwater

Treasure: Armaments

Amphibious.

The giant can breathe air and water.

Spellcasting.

The giant casts one of the following spells, requiring no Material components and using Wisdom as the spellcasting ability (spell save DC 18):

At will: Detect Magic, Light

1/day: Control Weather

Actions

Multiattack.

The giant makes two attacks, using Storm Sword or Thunderbolt in any combination.

Storm Sword.

Melee Attack Roll: +14, reach 10 ft. Hit: 23 (4d6 + 9) Slashing damage plus 13 (3d8) Lightning damage.

Thunderbolt.

Ranged Attack Roll: +14, range 500 ft. Hit: 22 (2d12 + 9) Lightning damage, and the target has the Blinded and Deafened conditions until the start of the giant's next turn.

Lightning Storm (Recharge 5-6).

Dexterity Saving Throw: DC 18, each creature in a 10-foot-radius, 40-foot-high Cylinder originating from a point the giant can see within 500 feet. Failure: 55 (10d10) Lightning damage. Success: Half damage.

Find this creature in the encounter builder

Source: Monster Manual (2025), p. 302 - Licenses and attribution