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Storm Matriarch

Huge dragon, neutral

AC
18
HP
195
Speed
40
CR
13

Storm-petrels follow ships; the matriarch collects the debt for the following. She nests in the customs hulk's broken mizzen and hunts the tide line ahead of weather, wings the colour of harbour fog with lightning stitched through. When she screams, the rigging answers before the thunder does.


Armor Class 18 (storm scales)

Hit Points 195 (17d12 + 85)

Speed 40 ft., fly 80 ft., swim 30 ft.


STR
22 (+6)
DEX
18 (+4)
CON
20 (+5)
INT
16 (+3)
WIS
18 (+4)
CHA
20 (+5)

Saving Throws Con +10, Dex +9, Wis +9

Skills Perception +9

Damage Resistances lightning, thunder

Damage Immunities cold

Senses darkvision 120 ft., passive Perception 19

Languages Common, Draconic, Auran

Challenge 13


Traits

Legendary Resistance (2/Day). If the matriarch fails a saving throw, it can choose to succeed instead.

Storm Aura. At the start of each of the matriarch's turns, each creature within 10 feet takes 7 (2d6) Lightning damage as static crawls the scales. Flying in her aura costs double movement for creatures other than her.

Amphibious. The matriarch can breathe air and water.

Actions

Multiattack. The matriarch makes one bite attack and two talon attacks.

Bite. Melee Attack Roll: +11, reach 10 ft. Hit: 24 (4d8 + 6) Piercing damage.

Talon. Melee Attack Roll: +11, reach 5 ft. Hit: 24 (4d8 + 6) Slashing damage.

Lightning Breath (Recharge 5–6). The matriarch exhales lightning in a 60-foot line. Each creature there must make a DC 18 Dexterity saving throw, taking 42 (12d6) Lightning damage on a failure, or half as much on a success.

Legendary Actions

Talon. The matriarch makes one talon attack.

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Further reading

Jetpack7 Game Master Series
The Game Master's Book of Random Encounters
Jeff Ashworth · 2020
The Game Master's Book of Traps, Puzzles and Dungeons
Jeff Ashworth · 2022
The Game Master's Book of Legendary Dragons
Aaron Hübrich · 2022