Well, one idea could be that Ruby's dragon faunus side is awakened by a powerful relic. And then she has to quickly learn to control her new powers. Another is that she discovers she has a special bond with a dragon - like Grimm, which is really strange as Grimm are usually just evil entities. This bond could make her question the nature of Grimm and faunus.
An interesting concept could be that Ruby, as a Dragon Faunus, has a hidden lair where she stores all her weapons and treasures. She invites her friends from Team RWBY to this lair, and they are amazed at all the dragon - related things she has collected over time. Also, her dragon faunus form could give her the ability to communicate with certain animals, which could be useful in getting information or help during missions.
For a Ruby - as - Dragon - Faunus fanfiction, consider a story where Ruby is the key to uniting the faunus and human kingdoms. Her dragon faunus heritage makes her respected by both sides. She uses her influence to promote peace and understanding. In battles, she has a unique transformation sequence into her full - power dragon faunus form. This form is so powerful that it can even face off against the most powerful of Salem's minions, and her friends look up to her as a true hero in this new role.
Chapter 77, "Why are you sabotaging me again?", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Wen Jiaojiao's reminder calmed Shu Yan down.
Chapter 377, "Master Above, Please Accept Your Disciple's Bow", is the clearest early answer because a shaky connection becomes usable in the plot. Early on, Tell me what it is that you came to ask of me this time?" After....
Chapter 363, "A Cure-All for Fancy Trappings and Arrogant Tyranny", is the clearest early answer because the rescue effort creates visible on-page results. It opens with I bid 550,000!" "600,000!" "750,000!" "....." Soon, the price of the...
Chapter 209, "Given by Me", is the clearest early answer because it turns Hahahaha's situation into a concrete plot event. A useful checkpoint is the way the scene starts with He Yun suddenly spilled out over a dozen cards.
Chapter 110, "The Plow Ox CP didn't even start before it ended", is the clearest early answer because it turns Lili's situation into a concrete plot event. The chapter turns that into something concrete by moving from Jiang Li, carrying a wooden basin, walked over to the well.
Chapter 398, "Have You Finally Decided to Use Gu on Your Family?", is the clearest early answer because it turns Decided's situation into a concrete plot event.
Chapter 208, "Those Who Commit Many Wrongs Will Destroy Themselves", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. The chapter gives readers a real answer by opening on Jiang Yan clicked his tongue, "What's this about money?
Chapter 509, "Don't Cry Funeral Until Someone Dies", is the clearest early answer because it turns Don's situation into a concrete plot event. The chapter turns that into something concrete by moving from Because of the commotion from the night before, Jiang Li had...
Chapter 475, "Doting on the Man You Love to the Fullest", is the clearest early answer because it turns Doting's situation into a concrete plot event.