Kushala is one of my favorite elder dragons in the series. Simplistic yet badass design with an awesome battle theme and a very fun fight. His weapons are among the best ice ones in the game and the armor both looks cool and has decent skills. The Rust variant has an awesome battle theme in the village quest but sadly it's not even a fight, just a tutorial for the battlequarters. The actual Rust variant fight in G rank is annoying and frustrating, but he at least looks cool. Overall Kushala is a fantastic monster who definitely deserves to return in future games.