Bruni

Bruni is a magical spirit that represents fire.

It is one of the four elemental spirits that Elsa awakens.

History
Before the battle between Northuldra and Arendelle, Bruni with other spirits lived in harmony with humans. After the dam was built, Bruni was playing with one of the Arendellian soldiers. After the war broke out, the spirits attacked humans and cursed the Enchanted Forest with the impenetrable, magical mist and disappeared.

When Elsa woke up the spirits, Bruni took away all the fire from Arendelle when the spirits expelled the citizens.

After Elsa, Anna, Kristoff, Olaf and Sven met the Northuldra, Bruni started a fire, scaring people and reindeer. Elsa followed him and extinguished the fire, protecting the nearby Northuldra settlement. She wanted to blast him with ice, but after noticing that the Fire Spirit is a small and cute salamander, she changes her mind. Bruni shot fire in her direction, but missed and Elsa immediately put the flames down. After that he calmed down and walked onto Elsa's open hand. Elsa fed him with snowflakes, which he liked very much and all of the flames extinguished. A moment later Ahtohallan called again and Elsa decided to go north.

Bruni returned during the Earth Giants' attack, this time he hid with Olaf, making his arms burn and cooled down on his permafrost.

Bruni appeared again, when Anna, Elsa and Olaf were looking for the voice and was freaked out by Olaf's vocalizes.

Seeing Olaf flurry away, Bruni sadly lied down on a rock.

After the curse was lifted, he happily played with Gale.

When Elsa told Yelena and Honeymaren about Ahtohallan, he jumped onto her hands and is pet by her.

Later, he was with Elsa when she got the letter from Anna and during her Nøkk ride, she made him a pile of snow to eat and lie on.

Personality
When furious, he brings destruction by setting things on fire, or taking fire made by people away. After being tamed, he doesn't attack people anymore and loves to eat and play in fresh snow made by Elsa.

Abilities

 * Fire powers