Circle of Fury

Malar, Umberlee, Talos, Auril, Talona, and others were known in older times as the Gods of Fury, with their own druidic circles representing the destructive extremes of nature. Members of the Circle of Fury tend not to worship any particular deity, venerating all the Gods of Fury as co-equals (or at least fluctuating variables) in destructive power. Druids in the Circle of Fury favor wild beast forms and familiars, but with destructive twists to their nature, and become potent emissaries between the many creatures which dwell and revel in such fury.

 

Destructive Beasts

Druids from the Circle of Fury imbue their wild shapes and animal companions with elemental energies. At 2nd level, when you wildshape, choose an elemental type from: cold, lightning, poison or thunder. In your beast form you are resistant to this damage type and add an additional 1d4 damage of this energy type to your damage rolls.

At 8th level you can choose two elemental types when you wildshape, and increase the damage dice to 1d6 of each type.

At 14th level you can choose three elemental types when you wildshape, and increase the damage dice to 1d8 of each type.

At 20th level you are resistant to all four damage types when you wildshape, and increase the damage dice to 1d10 of each type.

If you take a Wild Companion or familiar (Tasha pp.35-36) you may imbue that creature with this power as well. 

Circle of Fury Spells

Druid

Level:    Spell:

3     -     Shatter

5     -     Call Lightning

7     -     Ice Storm

9     -     Cloudkill

Aiding Fury

At 6th level, your wisdom guides and aids the power of furious magic, adding your Wisdom modifier to spells which deal Cold, Lightning, Poison or Thunder damage.

Additionally, when you are in hazardous weather (wind / precipitation / frigid water / thin ice DMG p110-111) ignore penalties to your skill checks, and the thinnest sheet of ice will never break beneath your weight, although you could still fall through ice broken by another. 

Epicenter of Fury

Magical shielding against the fury of storms is made more potent by your devotion to the circle. At 10th level, if you cast a spell which grants resistance to cold, lightning, poison or thunder damage, the spell instead grants immunity to that / those damage type(s).

Emissary of the Circle

As a high-ranking member of the Circle of Fury, you are expected to liaise with creatures of furious elemental affinity. Beginning at 14th level, you have advantage on all social interactions involving creatures which are naturally immune or resistant to cold, lightning, poison or thunder. This includes most dragons, elementals, fiends, Storm Giants and Frost Giants, undead, and a host of other creatures.