Iris commands the Opelucid City Gym in Unova, wielding Dragon-type Pokémon with formidable expertise. In *Pokémon Generations*, she rallies alongside fellow Gym Leaders to quell Team Plasma’s uprising at N’s Castle, deploying her Druddigon’s Flamethrower to dismantle grunt operations through calculated aggression. Her strategic prowess shines in these clashes, prioritizing raw offensive power.  
Across the core series, her trajectory unfolds dynamically. First aiding the player and Bianca in Castelia City after Team Plasma’s theft of Munna in *Pokémon Black and White*, she later assumes the Opelucid Gym Leader role in *Pokémon White*, challenging trainers with her Dragon-types and granting the Legend Badge. Two years post her Gym Leader debut, *Black 2 and White 2* chronicle her rise to Unova’s Champion, succeeding Alder under the rigorous tutelage of Drayden, Opelucid’s mayor and her mentor. A Memory Link scene with Drayden traces her origins from the Village of Dragons to championship glory, cementing her relentless growth.  
Her teams mirror her evolution. As Gym Leader, Fraxure, Druddigon, and Haxorus dominate her roster. Upon ascending to Champion, she diversifies with Lapras and Aggron, each retaining Dragon-type moves to balance versatility with her signature type. Her Hydreigon, intentionally underleveled yet fiercely deployed, epitomizes her bold, risk-laden tactics.  
Visual redesigns echo her shifting roles. Practical Gym Leader attire—a cream top and pink skirt—gives way to a regal pink-and-white gown and golden tiara as Champion, gifted by Drayden to signify her newfound authority.  
Spin-offs like *Pokémon Masters EX* feature her dual roles, pairing her with Haxorus, Hydreigon, and Naganadel, reinforcing her Dragon-type mastery and competitive ferocity.  
Known as "The Girl Who Knows the Hearts of Dragons," Iris blends fiery enthusiasm with empathy, championing bonds between humans and Pokémon. From thwarting Team Plasma to mentoring under Drayden, her journey from spirited ally to Unova’s apex battler underscores an unwavering commitment to strength, strategy, and mutual trust with her partners.