Cloud Chaser, amid complications romantic and weather-related, tries to protect her vain, airy sister after they join the Ponyville weather team.
Content Note: Dark tag due to brief allusions to long-past injury to a foal and themes. Past alcohol use mentioned a couple of times.
Era: Pre-Season One right before the Elements of Harmony get together. (See an Index of my canon-compliant tales sorted by Season).
An entry in the Imposing Sovereigns III Competition using the prompt: [(Cloud Chaser) / (Determination)]. As required, Cloud Chaser is in a "position of power" over her minor sister, whom she is determined to take care of. To be fair, "Princess" Flitter is also demonstrating determination about improving herself and getting what she wants. Rainbow Dash shows determination as a leader, but she's not the focus.
Image: See the source link on the image. (If the artist is on here (I saw an account that had been last accessed in 2013), I am glad to contact same and/or change this as necessary.)