A dark entity from another dimension could be the main antagonist. It senses Anna's new powers and wants to use them to open a portal between dimensions so that it can bring its army of monsters into Anna's world. So it constantly hunts Anna down, trying to either force her to use her powers for its own evil plan or simply kill her and take the powers for itself.
The concept of Anna getting fire powers in a fanfiction is really interesting. It could be a result of some ancient magic that was dormant in her all along. Her fire powers would contrast beautifully with Elsa's ice powers. For example, they could team up in a new way, with Elsa creating ice structures and Anna using her fire to add details or melt parts for functionality. Also, Anna's fire powers could symbolize her inner strength and passion that was always there but now has a physical manifestation. This would open up a whole new world of adventures for her and new storylines for the Frozen universe.
Sure. One popular 'anna gets powers fanfiction' might be on platforms like FanFiction.net. You can search for it there using the exact phrase 'anna gets powers'. There are often many different takes on how Anna gets her powers, whether it's from a magical artifact or some sort of genetic mutation in these fanfictions.
There could be a fanfic where Anna gets ice powers and she embarks on a journey to discover the origin of these powers. Along the way, she meets new characters and has to overcome various challenges using her ice powers and her strong will. This would add a whole new adventure aspect to the Frozen universe.
You can try fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfics from various fandoms, including Frozen. Just search for 'Anna gets ice powers' in the search bar and you'll likely find some great reads.
A 'anna fire powers fanfic' could be really exciting. It might explore Anna from a particular story or franchise having the power of fire. The fanfic could involve her learning to control this new power, perhaps facing challenges where she has to use it to save her friends or her world. There could be intense battle scenes where she unleashes her fire powers in creative ways.
Anna's fire powers could be described as a searing blaze that she can summon at will. The flames might be a bright orange - red, with a heat so intense that it can melt ice in an instant. When she gets angry, the flames could flare up uncontrollably, reaching higher and burning hotter. She might be able to shape the fire into different forms, like a whip to lash out at enemies or a shield to protect herself. The fire could also have a unique quality, such as leaving behind a trail of warm embers that slowly fade away.
One possible fanfic could be about Anna discovering her fire powers in a hidden part of Arendelle. Maybe she stumbles upon an ancient relic that unlocks this power within her. And then she has to learn to control it to protect her kingdom from new threats.