Storm giant

Storm giants are a type of highborn giantkin native to the Material Plane.

Culture
As of 812 PD, with no homeland to unite them, storm giants are the most mysterious of all the highborn. They live solitary lives, keeping no other giant for their neighbor, protecting only themselves and their families.

Abilities
The following abilities are all taken from the Monster Manual, 5th Edition, p. 156 and Storm King's Thunder, p. 246; none have been demonstrated in official Critical Role media:
 * Amphibious - can breathe air and water
 * Innate Spellcasting
 * At will: Detect Magic, Feather Fall, Levitate, Light
 * 3/day each: Control Weather, Water Breathing
 * Lightning Strike: In a 10-foot radius of a point within 500 feet that the giant can see, each creature takes lightning damage (half damage with a successful Dexterity saving throw)
 * Thunderous Stomp: All creatures within 15 feet of the giant take thunder damage and are deafened until the beginning of the giant's next turn, unless they make a Constitution saving throw, in which case they take half damage and are not deafened.

Background
The storm giants' flying city-state of Tempestar was destroyed by an unknown force in times long past, and all the glories of their realm were cast into the Lucidian Ocean, hundreds of miles off the coast. Centuries have passed since Tempestar was the seat of the Council of Seven Scepters, yet the reclusive storm giants are still considered part of the highborn out of fear of their sorcerous power. The cloud giant kings are particularly concerned with appeasing the storm giants; if unified, the remnants of Tempestar could conquer the flying city of Jovatthon with ease.

The Frigid Depths
As of 836 PD, storm giants have lately blocked the trade routes from Icehaven to Balenpost.

Named storm giants

 * Typhoe, the Dreaming Shark: a secluded champion in Tal'Dorei who has risen to the near-divine power of a lesser idol