Encountering Gwynn occurs during your pursuit of Rank D missions within Lumiose City’s underworld. After assisting her sibling Ivor with multiple tasks, she emerges in the sewer system. Her team specializes in spectral creatures paired with fiery allies. Overcoming her unlocks fresh narrative paths and elevates your mission rank.
Strategies for Victory Against Gwynn

Strategic planning trumps raw power in this encounter. Gwynn’s squad utilizes debilitating tactics to disrupt standard approaches. Prioritize swiftness, type effectiveness, and status ailment prevention.
Gwynn’s Spectral Squad
Her trio of Ghost-type specialists feature versatile move pools, arranged in this configuration:
| Pokemon | Type | Level | Moves |
|---|---|---|---|
| Mega Chandelure | Ghost / Fire | 45 | Overheat, Shadow Ball, Will-O-Wisp, and Calm Mind |
| Gourgeist | Ghost / Grass | 44 | Phantom Force, Leech Seed, Shadow Sneak, and Seed Bomb |
| Banette | Ghost | 43 | Shadow Ball, Confuse Ray, Sucker Punch, and Will-O-Wisp |
Effective Countermeasures




Opt for Dark, Water, and fellow Ghost-type combatants to neutralize Gwynn’s tactics effectively.
Top Counters for This Clash
- Greninja (Water/Dark): High mobility with Dark Pulse and Aqua Jet
- Mega Absol (Dark)
- Aegislash (Ghost/Steel): Defensive stance with Shadow Claw
- Mega Gengar (Ghost/Poison): Speed advantage against fire users
- Umbreon (Dark): Resilient against status manipulations
Implement Shadow Claw and Dark Pulse for consistent pressure against Gwynn’s primary team members. For Chandelure’s fiery assaults, employ Hydro Pump or Aqua Tail while maintaining positional awareness to dodge Will-O-Wisp.
Counter Gourgeist’s seed-based tactics with Blizzard or Stone Edge, exploiting its Grass-type vulnerabilities. Incorporate Safeguard or Nasty Plot to either block status effects or amplify your offensive capabilities progressively.
Optimal Battle Gear
- Expert Belt for type-based damage boosts
- Quick Claw for initiative advantage
- Shell Bell for sustained recovery
- Mega Bracers for evolutionary enhancements




