Legends Arceus The Sea's Legend Quest Walkthrough And Pokemon Guide

The Sea's Legend is one of the most enigmatic requests in Pokemon Legends: Arceus, tasking players with solving a riddle that originates from an entirely different game generation. This quest rewards diligent trainers with the opportunity to catch the rare Mythical Pokemon Manaphy and Phione. Navigating this challenge requires a deep understanding of historical lore alongside specific party preparation within the Hisui region.

Decoding the Ancient Riddle of the Sea

Unlike most requests found on Professor Laventon's blackboard, this mission does not provide direct map markers or explicit instructions. The solution to this mystery is actually hidden within a book titled The Sea's Legend found in the Canalave Library within Brilliant Diamond and Shining Pearl. This clever cross-game puzzle references an ancient story detailing a brave human who met with specific ocean creatures.

To successfully trigger the event, trainers must assemble a highly specific team configuration before heading out into the waters. Your active party must contain a Buizel, a Mantyke, and an Overqwil, which is the unique Hisuian evolution of Qwilfish. Ensuring you have these three specific creatures ready is the mandatory first step to breaking the ancient ocean seal.

Navigating the Cobalt Coastlands Gate

Once your team is fully assembled, you must change the in-game time to evening and fast travel directly to the Cobalt Coastlands. From the coast, summon your Basculegion mount and ride toward the massive pincer-like rock formations stretching out into the ocean. Sailing directly between these two giant stone spires under the evening sky will trigger a distant, rumbling cry that confirms the hidden cave has opened.

Following the successful activation sound, you need to navigate along the northern cliffs of the Veilstone Cape to find the newly unsealed cavern. The hidden location is known as the Seaside Hollow, a secluded cave carved directly into the rocky coastline. Preparing your satchel with high-quality status-inflicting items and specialized Poke Balls is highly recommended before stepping inside the dark cave entrance.

Battling and Catching Manaphy and Phione

Stepping into the Seaside Hollow initiates an intense combat encounter against four aggressive water-type Pokemon simultaneously. You will face one level 50 Manaphy alongside three level 34 Phione, all protected by swirling water shields that block initial capture attempts. Throwing mud balls or smoke bombs is an excellent tactical approach to temporarily stun the targets and break their defensive barriers safely.

It is best to focus your attention on catching the surrounding Phione first to reduce the incoming elemental damage directed at your active party. Once the smaller targets are secure, carefully reduce Manaphy's health pool using non-lethal moves like False Swipe or status conditions such as drowsiness. Successfully capturing these legendary creatures completes the historical request and provides invaluable data for your expanding Hisuian Pokedex project.