This is a guide for Mission 17: “Atop Mount Coronet” in Pokémon Legends: Arceus (PLA).

How to Start Mission 17¶

You’ll automatically receive this mission from Captain Cyllene when you return to Galaxy Hall after completing Mission 14, Mission 15 and Mission 16. Having acquired the Red Chain, you’re ready to save the world. Trouble is, Commander Kamado has gone on ahead towards the rift. Your task is to repair the rift and, should the need arise, stop Kamado.

1. Leave Jubilife Village¶

With the fate of the Hisui region at stake, make for the Front Gate, to depart the village. Since it’s been a while since you stepped foot in the village, feel free to pick up/report any requests. Also, speak to Cyllene in her office if you need to rank up. At the gate, you’ll receive a Max Revive from a young fan.

2. Head for the Stone Portal¶

You’ll arrive at the newly built Summit Camp at the Coronet Highlands. To reach the Temple of Sinnoh at the top of the mountain, you must pass through the Stone Portal. It’s located north-east from your current position. You can head north, then follow the snowy slope east. There will be a guard standing near the entrance of the Stone Portal.

3. Duel with Beni¶

Inside the Stone Portal, it’s just a straight path, with a gradual incline. About halfway along the path, the cavern with widen, creating a convenient place for a Pokémon battle. Of all the people to stand in your path, we didn’t quite expect to see him.

Galaxy Team’s Beni¶

Beni’s first Pokémon is the spooky Mismagius. As it’s a pure Ghost-type, we recommend leading with a Dark-type. Watch out for Hypnosis, which can cause drowsiness, occasionally preventing your Pokémon from acting.

Afterwards, Beni can send out Sneasler, which you’ve used to climb many a mountain. Psychic-types will do major damage; Ground and Flying should also suffice. Be careful of Sneasler’s Dire Claw, which has a high critical hit ratio and may inflict poison/paralysis/drowsiness.

Versus Gardevoir, use Steel or Ghost-types if you can. Gardevoir can use Calm Mind to boost its offensive and defensive stats, making it a threatening foe. Therefore, a swift victory is encouraged.

Lastly, Beni also has the male counterpart, Gallade. Against this fella, Flying, Ghost and Fairy-types are the way to go. Swords Dance will boost Gallade’s offensive stats, making its Drain Punch hurt harder and siphon more HP.

4. Meet Up with Adaman and Irida¶

With Beni taken care of, proceed to the exit of the Stone Portal. On the other side, you’ll be right near the summet of Mount Coronet. Continue ascending the slope towards where Adaman, Irida and the others are. We’re not sure why Beni didn’t bother trying to stop them, but we digress.

5. Attempt to Persuade Kamado¶

Ready and raring to go? Head up the slope past the meeting point and confront Kamado who’s near the front of the Temple of Sinnoh. Perhaps you could get him to change his mind without resorting to violence? Nah, we didn’t think it would work either. To arms!

Galaxy Team’s Kamado¶

Kamado leads with a Hisuian Braviary, which you should be familiar with from atop Snowpoint Temple. Dark-types are ideal, while Electric, Ice, Rock and Ghost are also great choices. If you don’t use a Dark-type, be wary of Esper Wing, which boosts Braviary’s action speed and has a high critical hit ratio.

Next, he may bring out Golem. Water or Grass-types will deal massive damage. Ground, Fighting and Steel-types are also worth using, although not so much if they’re physical-based.

When it comes to Clefable, Steel-types are preferable; Poison-types are susceptible to its Psychic. Be wary of Calm Mind (boosts its offensive and defensive stats) and Baby-Doll Eyes (lowers your offensive stats), which can make it rather tanky.

Finally, Kamado’s got a Snorlax. Naturally, Fighting-types have a big advantage, but note that his Snorlax can counter with Zen Headbutt. Likewise, Rock and Steel-types may struggle to wall Snorlax thanks to its High Horsepower.

6. Capture Dialga or Palkia¶

That’s the main obstacle dealt with. Again, check that you’re fully prepared; who knows what’ll happen from here. OK, we can tell you what’s going to happen. The moment you approach the end of the temple, where the gang is, you’ll confront Dialga or Palkia.

Legendary Pokémon¶

During this battle, you must catch Dialga or Palkia to proceed. If you KO them, you’ll be asked to fight them again.

When facing Dialga, there aren’t many great walling options. Fairy-types are immune to its Roar of Time, but will get smacked around by Flash Cannon and Iron Tail. Meanwhile, Fire and Electric-types that normally resist its Steel moves will be punished by Earth Power.

That leaves Water and Ground as the best choices. Water-types can tank Dialga’s Steel moves, but will need to rely on non-Water moves, since those are resisted by Dragon. Meanwhile, Ground-types resist nothing, but they’re not weak to anything either and can cause a dent in Dialga.

Versus Palkia, the choices are more simple. Fairy-types will make Palkia think twice about using its Spacial Rend. But they will take the full force of Aqua Tail and Hydro Pump. Thankfully, many Fairy-types have access to Calm Mind and/or Baby-Doll Eyes to improve their survivability.

So long as you can survive, the basics of capturing these Legendary Pokémon are the same as always. Do your best to lower their HP as much as possible. False Swipe is the safest way, but using it will probably take too long–your False Swiper will likely get KO’d before accomplishing their goal.

Remember that you can purposely weaken a move by using it in Agile Style, which also increases your action speed. Besides that, moves like Hypnosis and Thunder Wave are useful to occasionally stop the Legendary from acting and make them easier to catch. Master Balls weren’t invented yet, so you’re basically stuck with Ultra Balls.

7. Run For Your Lives¶

After you’ve caught Dialga or Palkia, you might expect that’s the end of this story. But before you can celebrate, a second Legendary Pokémon emerges from the rift. You already used up the Red Chain to catch the first Legendary, so there’s nothing you can do, but run. Thus ends this mission.