Level 1: Tempestuous Magic
Storm Sorcery is a sorcerer subclass. Level 1 grants Tempestuous Magic.
After you cast a spell of level 1 or higher, you can fly as a bonus action up to 9 m / 30 ft until the end of your turn. That flight does not draw opportunity attacks.
Level 6: Heart of the Storm
At sorcerer level 6, Heart of the Storm adds a small storm when you cast a level 1 or higher lightning or thunder spell. Enemies within 6 m / 20 ft take sorcerer level / 2 of that damage type. The page's intro says that half is rounded down. You also gain resistance to lightning and thunder.
The tooltip limits the storm to leveled spells. The wiki notes it can also fire on some cantrips, and on some lightning or thunder spells that deal no damage.
At level 6 the subclass also adds Thunderwave, Create or Destroy Water, Gust of Wind, Sleet Storm, and Call Lightning.
Level 11 sits on the level-up screen
Storm's Fury is the level 11 feature. Read it on the level-up screen when you get there. This starter stops at the features above.
Storm Sorcery lists Storm's Fury at level 11.
The character level cap is 12. Multiclass levels share that cap.
Withers charges 100 gold to return a character to level 1 and rebuild class and ability scores. Race, background, and appearance stay.
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