This event is available after you enter Frostpoint Field from the exit that’s near the Freezington base camp. If you’ve completed the main story, you’ll be directed to some footprints by a tree. Afterwards, Sonia will show up and ask you to find as many footprints as possible.
The first footprint you discover will belong to the Iron Will Pokémon, Cobalion. They’re blue-ish in colour and have a rainbowy shimmer if you look carefully. This footprint amounts to 2% of the data that Sonia requires to track Cobalion, meaning you have to locate 49 more footprints. This isn’t as hard as you might expect though.
Unlike the Digletts in the Isle of Armor, there are way more footprints than you actually need. So you don’t need to pull your hair out looking for the last couple of footprints. Also, unless our eyes deceive us, new footprints will slowly appear over time. That means if you keep searching, you’re bound to find enough prints.
In Cobalion’s case, its footprints generally appear around the following areas: the eastern half of Giant’s Bed, Giant’s Foot, Roaring-Sea Caves and finally Frigid Sea. The frequency of footprints increases as you get closer to Frigid Sea. In fact, you can find enough prints just from Frigid Sea.
Pokémon Sword & Shield: The Crown Tundra - Frigid Sea Footprints
Where to find footprints in the Frigid Sea zone in Pokémon Sword and Shield's Crown Tundra DLC.
If you need help searching for footprints, please check out our video above. It’ll guide you through all the footprints found in Frigid Sea. (Please note that we didn’t collect a footprint next to Altaria, near the start of the video.)
After hitting the 100% completion mark for Iron Will footprints, fly back to Freezington and report back to Sonia, who’s waiting in the middle house, next to the base camp. She’ll tell you something you’ve probably deduced by now: Cobalion is living in Frigid Sea. Now if you return to Frigid Sea, you can find Cobalion roaming around.
Specifically, the Iron Will Pokémon is waiting at the end of the large island in the centre of the sea, facing Roaring-Sea Caves. Be wary if it’s currently snowing in the zone, since Cobalion will take hail damage each turn. You can either come back when the weather is clearer or use your noggin to figure something out.
Mistakes Were Made
To be clear, don’t worry if you accidentally knockout Cobalion or any other Legendary Pokémon. Likewise if you decide to flee the battle or end up losing. Although the game doesn’t say anything special, Cobalion and its buddies will respawn when you leave and come back.
Cobalion is a tough nut. It has impressive Defense and more or less solid stats, with the exception of so-so Sp. Defense. When threatened, it can unleash a Sacred Sword, which ignores the opponent’s stat changes, a hefty Close Combat, which afterwards lowers its defensive stats, Iron Head and Swords Dance, to boost its Attack.
Looking at Cobalion’s moveset, you’ll want some kind of plan to deal with its increasingly dangerous attacks. A Ghost-type would be ideal, since Cobalion has two Fighting-type moves. That leaves Iron Head, which can hurt a lot, especially when it’s boosted. So try to look for a Ghost and Fire/Water/Steel-type, like Chandelure.
Once you’ve found a Pokémon to sit in front of Cobalion, everything should be simple. Hopefully you have lots of Legendary catching experience from the Crown Tundra! If you’re expecting a prolonged fight, try to inflict paralysis with Nuzzle, etc. Then slowly weaken its HP, using False Swipe if possible to get it down to 1 HP.
The biggest hurdle of this fight is something you can’t directly control–the weather. If it’s hailing, Cobalion will take damage each turn, which is bad news. There are a few ways to deal with this. One, you could change the weather in battle, using Rain Dance or Sunny Day. Make sure to hold a Damp/Heat Rock so the weather lasts longer.
Even if you change the weather, it’ll revert back after 4 or 8 turns, so you need reapply it again. Alternatively, you could field a Pokémon with Air Lock (Rayquaza) or Cloud Nine (eg. Golduck), to negate the weather. Our recommended choice is a Hidden Ability Altaria with Cotton Guard, but it may be a hassle to get.
Perhaps the safest method is to use Trick to give Cobalion your Pokémon’s Safety Goggles. You can acquire a pair of goggles from the Tunnel to the Top. Meanwhile, you can learn Trick from TR38 or catch a Rotom from Workout Sea, then make it relearn the move (and train it a bit). A word of caution: You need to catch this particular Cobalion to get your goggles back.