Kalos walkthrough section
Pokemon X and Y Phase 10: Battle Chateau Endgame + Gym Leader Rematches
Battle Chateau (Route 7 north side) opens up significantly post-game. Higher-rank trainers appear, gym leaders show up randomly as Marquis/Marchioness-rank challengers, and you can buy Writs to invite specific opponents.
Phase 10 Post-Game Professor Sycamore Kalos Professor Looker Bureau, Kiloude, Mewtwo, Zygarde, and Mega Stones. 10 / 10 
Phase 10 section 10 of 15
Battle Chateau (Route 7 north side) opens up significantly post-game. Higher-rank trainers appear, gym leaders show up randomly as Marquis/Marchioness-rank challengers, and you can buy Writs to invite specific opponents.
Battle Chateau Endgame + Gym Leader Rematches
Battle Chateau (Route 7 north side) opens up significantly post-game. Higher-rank trainers appear, gym leaders show up randomly as Marquis/Marchioness-rank challengers, and you can buy Writs to invite specific opponents.
Rank progression after Champion
- Earl/Countess — already unlocked.
- Marquis/Marchioness — requires defeating ~15–20 Earls. Gym leaders start appearing at this rank.
- Duke/Duchess — defeating Marquises. Higher-level trainer rosters (Lv 65+).
- Grand Duke/Duchess — highest rank. Endless grind for prize money.
Writs you can buy
| Writ | Cost | Effect |
|---|---|---|
| Silver Writ of Challenge | ~10,000 P | Spawns higher-rank Marquis-tier trainers for 30 minutes. |
| Gold Writ of Challenge | ~30,000 P | Spawns Duke-tier trainers. |
| Black Writ of Challenge | ~50,000 P | Drops opponent level by 10 — easier grind, less XP. |
| Red Writ of Challenge | ~20,000 P | Increases prize money. |
| Blue Writ of Challenge | ~20,000 P | Increases XP gain. |
Gym Leader rematches in the Chateau
★ All 8 gym leaders can appear in the Chateau at random as Marquis/Marchioness/Duke/Duchess. Their rosters are higher-level versions of their gym teams (Lv 60–70+). Defeating each grants you big prize money.