Yes, you can use Tharja in the story mode in Fire Emblem Warriors.
Usually, you just need to progress through the story to unlock her.
One common theme is her love and obsession, often related to Robin. Many fanfictions explore how her feelings for Robin develop and what she's willing to do for that love. Another theme is her magic and how it sets her apart from others in the 'Fire Emblem' world.
Well, 'The Enigmatic Tharja' is an interesting fanfiction. It focuses on Tharja's magic and how it affects her interactions with other characters. There's also 'Tharja's Secret Diary', which is a creative take as it's written from her perspective, giving readers a unique insight into her thoughts and feelings.
One common theme is the exploration of their contrasting personalities. Robin is often portrayed as more rational and Tharja as more mysterious and dark, and their relationship is about how they bridge that gap. For example, in many fanfics, Robin tries to understand Tharja's magic - centered world view.
One great 'Fire Emblem Robin x Tharja fanfiction' is 'Bound by Destiny'. It beautifully explores their relationship with a lot of emotional depth and interesting plot twists. Another is 'The Unspoken Bond' which focuses on how they slowly come to understand and care for each other in the midst of the game's chaos.
One common theme is the struggle between light and dark. Chrom represents the light, being a noble leader, while Tharja is associated with dark magic. Their relationship often involves navigating this contrast. Another theme is unrequited love, as Tharja has feelings for Chrom which may or may not be reciprocated at first.
One common theme is self - discovery. The original characters often have to figure out their place in the world of Fire Emblem Warriors. They might start as outsiders and gradually find their purpose.
Chrom is often a popular character. His leadership skills and strong sense of justice make him a great protagonist in many fanfictions. He can lead the charge in battles and inspire his comrades, which is always an exciting aspect to write about.
Another good storyline might involve a character's redemption arc in the Fire Emblem Warriors fanfiction. Maybe a villainous character realizes the error of their ways through interactions with the heroes. They then turn against their former allies and fight for a new cause, which would add depth to their character and create new plot twists.
One popular 'Fire Emblem Awakening Chrom x Tharja fanfiction' is 'A Different Kind of Bond'. It explores their relationship in a unique way, showing how Tharja's dark magic and Chrom's leadership interact. Another good one might be 'In the Shadows of Love' which delves deep into Tharja's feelings for Chrom and how she tries to win his heart while still maintaining her mysterious allure.