Which legendaries roam Sinnoh in Diamond and Pearl?

Two Level 50 roamers wander the region: Mesprit, after it flees Lake Verity, and Cresselia, after you sail to Fullmoon Island with Sailor Eldritch to get the Lunar Wing for his sleeping son. Cresselia needs the National Pokedex and the Hall of Fame first. Both run at the start of every battle and relocate when you change areas, so use the Poketch Marking Map. Cresselia has Levitate and a brutal catch rate.

Diamond & Pearl Roaming Sinnoh

Not a place so much as a pursuit. Mesprit flees Lake Verity and Cresselia flees Fullmoon Island, each bolting the instant you find it, then circling Sinnoh until you run it down.

Roaming Sinnoh is in Sinnoh. In the story it comes after Route 223 and before Pokémon League.

ROAMING SINNOH MAP

Pokemon Encounters

Two roaming legendaries wander Sinnoh once their events fire, Mesprit after the lake trio scatters and Cresselia after the Fullmoon Island visit. Both sit at level 50 and flee on sight, so a False Swipe user and a pile of Quick Balls save real grief.

✦Special encounters2

#488Cresselia

Legendary Lv 50

#481Mesprit

Legendary Lv 50

Legendary

#488

Cresselia

Psychic

Level

EV yield

3 Sp. Def

Acquisition

Legendary

After encountering at Fullmoon Island

Sealed locationRoaming SinnohView on map

One-of-a-kind. You only get a single shot per cartridge: knock it out or run, and it is gone for the run. Save before engaging.

Cresselia page →

Roaming Sinnoh Guide

Two Level 50 roamers wander the region: Mesprit, after it flees Lake Verity, and Cresselia, after you sail to Fullmoon Island with Sailor Eldritch to get the Lunar Wing for his sleeping son. Cresselia needs the National Pokedex and the Hall of Fame first. Both run at the start of every battle and relocate when you change areas, so use the Poketch Marking Map. Cresselia has Levitate and a brutal catch rate.