Eris

Eris, previously known as Bearfrost, is the major antagonist in my ancient FrostClan fanfiction.

Appearance
Eris is a large black she-cat with glaring hazel eyes. She has long fur and pointed ears, and a scar on her left side.

Before the fanfiction
Eris was born in a kitten-breeding place, where Twolegs bred cats and then sold them. Her mother was a dark gray cat named Drainpipe. Eris had two siblings, a tom and a she-cat, but they both died soon after birth, and were not named by either Drainpipe or the Twolegs. Eris was soon proved to have a nasty temper, clawing at anyone that came near her, even her own mother. This was why she was named Eris, after the Greek goddess of discord and strife.

Eris, disliking the kitten-breeding place as well as the Twolegs, escaped from it one night and ran away. The kitten-breeding place was situated in the foothills of some mountains, and Eris traveled over them and found FrostClan (ancient FrostClan). She decided to join them and turn over a new leaf in her personality, because she had discovered that living on her own was lonely and she desired the company of cats. She at first kept her given name of Eris, but when she became a warrior she was given the name of Bearfrost, Bear for her black pelt and Frost after FrostClan, to symbolize her loyalty to it.

Bearfrost at first liked her life with the Clans, but as time went on she began to have a thirst for battle and fights. The rest of FrostClan enjoyed the peace and prosperity, but not Bearfrost. She began to plot a takeover of the Clan so that she could involve the Clan in more battles.

At the same time, Gullwing, a male warrior, was looking for a mate. He was panicking because all his friends had mates but he didn't, and eventually he picked the first she-cat he could find: Bearfrost, even though most of the FrostClan cats were uneasy about her willingness to harm and kill.

During the fanfiction (spoilers for the fanfiction if you're going to read it)
Bearfrost moved into the nursery and had three kits, Berrykit, Erminekit, and Diamondkit. She wanted all three of them to become warriors with great battle skill. However, Berrypaw preferred hunting to fighting, and Erminepaw always enjoyed taking care of the elders more than warrior duties. But Diamondpaw was the worst, in Bearfrost's opinion— he became the medicine cat apprentice, mentored by Freezeleaf, and didn't even want to become a warrior. Bearfrost despaired and decided right then and there to have another litter of kits, and to force one of them to become her champion.

She got her wish— Applekit and Penguinkit came within four moons of her previous litter's apprenticeship. And Applekit had just the qualities she wanted him to have— pride, command, obedience, ambition, and a willingness to do whatever it took to gain power, even cheating or even more dishonorable actions.

[Will fill this in]

After Bearfrost's death, she went to the Dark Forest, and decided to go back to her name Eris, because she wasn't loyal to FrostClan anymore. She hoped that her son Appleshine would join her in the Place of No Stars, but he decided to stop being evil once his mother was killed and eventually went to StarClan, much to Eris's annoyance.