The fourth installment of Ensky's thirteen-part Diamond & Pearl Retsuden run, continuing the master numbering from #286 to #380. By this point the Sinnoh roster was fully expanded, and Part 4 pivots from intro-stage Pokemon to the FINAL forms: Torterra, Infernape, Empoleon, Rampardos, Lucario, Magnezone, Rhyperior, Togekiss, and the rest of the late-DP evolutionary chains all share the run.
Part 4 widens its scope beyond Sinnoh. The non-holo block opens with the Sinnoh roster (#286-#333), then jumps backward to spotlight cross-generation favorites: Kanto's Blastoise, Pikachu, Kangaskhan, the Diglett line; Johto's Slowking, Mantine, Houndoom; Hoenn's Zangoose, Salamence, and Metagross. A surprising late entry: #348 Slowking next to #349 Mantine, both Generation 2 deep cuts that hadn't appeared earlier in the DP Retsuden run.
Both Sinnoh aquatic mythicals appear in Part 4: Phione at #332 (often confused with its evolution — CGC and some community catalogs mislabel this slot) and Manaphy at #333. Manaphy returns again at #375 as a Mirror Holo chase and once more at #379 as a Sparkle Holo. Three appearances of the same Pokémon across three tiers is unusual even for this series.
Part 4's endgame: #376 Torterra, #377 Infernape, #378 Empoleon, #379 Manaphy, #380 Pikachu. All three Sinnoh starter FINAL forms in one chase trio, plus the Manaphy mythical and a Pikachu cap. After Part 1's Turtwig/Chimchar/Piplup intro chases, this is the bookend — the same three Pokémon, fully evolved, capping the run a year later.