Phase 4 of 11
Pokemon Diamond and Pearl Phase 4: Fen Badge Walkthrough
Fen Badge Recover HM02, cross the southeast routes to Pastoria, explore the Great Marsh, and defeat Crasher Wake. 8 detailed sections with Diamond/Pearl encounters, trainers, items, puzzles, boss teams, and checklists.
Phase 4 Fen Badge Routes 214 and 213, Valor Lakefront, Pastoria City, Great Marsh, and Crasher Wake. 04 / 11 
Recover HM02, cross the southeast routes to Pastoria, explore the Great Marsh, and defeat Crasher Wake. Open every section below for its exact map-level data and route checklist.
Phase Snapshot
Phase 4: Fen Badge
Recover HM02, cross the southeast routes to Pastoria, explore the Great Marsh, and defeat Crasher Wake.
Data rows
Section Pages
Help Lucas or Dawn recover the stolen Pokedex, enter the warehouse vestibule, and collect HM02 Fly.
Phase 4 • 02Route 214 and Ruin Maniac CaveClear Veilstone's south road, explore the expanding Ruin Maniac tunnel, and connect Unown collection to the hidden punctuation chamber.
Phase 4 • 03Valor Lakefront and Hotel Grand LakeExplore the resort grounds, clear the Seven Stars Restaurant, collect room rewards, and mark Lake Valor's blocked entrance.
Phase 4 • 04Route 213Sweep the beach and cliff paths, visit Dr. Footstep, collect seaside items, and enter Pastoria through the eastern gate.
Phase 4 • 05Pastoria City, Great Marsh, and BarryTour Pastoria, receive HM05 Defog in the Great Marsh, sample rotating Safari encounters, and defeat Barry at the Gym entrance.
Phase 4 • 06Pastoria Gym and Crasher WakeRaise and drain water with colored switches, clear every swimmer and sailor, and defeat Wake's Gyarados, Quagsire, and Floatzel.
Phase 4 • 07Galactic Grunt Chase and SecretPotionPursue the bomb-carrying Grunt from Pastoria to Valor Lakefront, meet Cynthia, and receive the SecretPotion for Route 210.
Phase 4 • 08Route 212, Pokemon Mansion, and Trophy GardenComplete the optional westbound loop through rain and marshland, raid the Pokemon Mansion, and document Trophy Garden's daily postgame slots.
Major Battles And Partners
Galactic GruntGalactic • source ID 848Full team
Danger notes
Review the explicit team, levels, held items, and moves below before triggering the battle.
Practical counters
Bring healthy answers to the team's shared weaknesses and avoid entering with unresolved status or depleted PP.
Galactic GruntGalactic • source ID 849Full team
Danger notes
Review the explicit team, levels, held items, and moves below before triggering the battle.
Practical counters
Bring healthy answers to the team's shared weaknesses and avoid entering with unresolved status or depleted PP.
Pokémon Trainer BarryPokémon Trainer Barry • source ID 473Full team
StarlyWing Attack / Quick Attack / Endeavor / Double Team
BuizelAqua Jet / Quick Attack / Pursuit / Growl
PonytaEmber / Stomp / Tail Whip / Growl
GrotleRazor Leaf / Bite / Mega Drain / Withdraw
Danger notes
Barry's starter branch changes with the player's choice; later teams also swap the complementary Roserade/Floatzel/Rapidash slot.
Practical counters
Read the full branch team rather than countering only the starter. Rock or Electric covers the bird, while the remaining slots need broad Water, Grass, Fire, Flying, or Fighting coverage.
Pokémon Trainer BarryPokémon Trainer Barry • source ID 474Full team
- StarlyWing Attack / Quick Attack / Endeavor / Double Team
- BuizelAqua Jet / Quick Attack / Pursuit / Growl
RoseliaMega Drain / Poison Sting / Leech Seed / Magical Leaf
MonfernoFlame Wheel / Mach Punch / Fury Swipes / Leer
Danger notes
Barry's starter branch changes with the player's choice; later teams also swap the complementary Roserade/Floatzel/Rapidash slot.
Practical counters
Read the full branch team rather than countering only the starter. Rock or Electric covers the bird, while the remaining slots need broad Water, Grass, Fire, Flying, or Fighting coverage.
Pokémon Trainer BarryPokémon Trainer Barry • source ID 475Full team
- StarlyWing Attack / Quick Attack / Endeavor / Double Team
- RoseliaMega Drain / Poison Sting / Leech Seed / Magical Leaf
- PonytaEmber / Stomp / Tail Whip / Growl
PrinplupBubble Beam / Peck / Metal Claw / Growl
Danger notes
Barry's starter branch changes with the player's choice; later teams also swap the complementary Roserade/Floatzel/Rapidash slot.
Practical counters
Read the full branch team rather than countering only the starter. Rock or Electric covers the bird, while the remaining slots need broad Water, Grass, Fire, Flying, or Fighting coverage.
Leader WakeLeader Wake • source ID 316Full team
GyaradosBrine / Dragon Rage / Bite / Swagger
QuagsireMud Bomb / Slam / Mud Sport / Tail Whip
Floatzelholds Sitrus Berry • Brine / Ice Fang / Pursuit / Swift
Danger notes
Gyarados opens with Intimidate, Quagsire blanks Electric moves, and Floatzel is the fast closer.
Practical counters
Carry both Electric and Grass coverage. Grass deletes Quagsire; Electric pressures Gyarados and Floatzel.
Pokémon Trainer LucasPokémon Trainer Lucas • source ID 621Partner team
ClefairyMetronome / Gravity / Wake Up Slap / Sing
KadabraPsybeam / Psycho Cut / Reflect / Light Screen- PrinplupBubble Beam / Metal Claw / Peck / Growl
Partner role
Lucas joins the player for this scripted Galactic double battle; the displayed team branch depends on the player character and starter allocation. Only one of the listed partner branches applies to a save.
How to use the partner
Focus both allied attacks on one Grunt to cut the opposing action count. This is a one-scene ally battle, not a repeatable trainer fight or healing escort.
Pokémon Trainer LucasPokémon Trainer Lucas • source ID 622Partner team
- ClefairyMetronome / Gravity / Wake Up Slap / Sing
- KadabraPsybeam / Psycho Cut / Reflect / Light Screen
- GrotleRazor Leaf / Mega Drain / Bite / Curse
Partner role
Lucas joins the player for this scripted Galactic double battle; the displayed team branch depends on the player character and starter allocation. Only one of the listed partner branches applies to a save.
How to use the partner
Focus both allied attacks on one Grunt to cut the opposing action count. This is a one-scene ally battle, not a repeatable trainer fight or healing escort.
Pokémon Trainer LucasPokémon Trainer Lucas • source ID 623Partner team
- ClefairyMetronome / Gravity / Wake Up Slap / Sing
- KadabraPsybeam / Psycho Cut / Reflect / Light Screen
- MonfernoFlame Wheel / Mach Punch / Fury Swipes / Torment
Partner role
Lucas joins the player for this scripted Galactic double battle; the displayed team branch depends on the player character and starter allocation. Only one of the listed partner branches applies to a save.
How to use the partner
Focus both allied attacks on one Grunt to cut the opposing action count. This is a one-scene ally battle, not a repeatable trainer fight or healing escort.
Pokémon Trainer DawnPokémon Trainer Dawn • source ID 624Partner team
- ClefairyMetronome / Gravity / Wake Up Slap / Sing
- KadabraPsybeam / Psycho Cut / Reflect / Light Screen
- PrinplupBubble Beam / Metal Claw / Peck / Growl
Partner role
Dawn joins the player for this scripted Galactic double battle; the displayed team branch depends on the player character and starter allocation. Only one of the listed partner branches applies to a save.
How to use the partner
Focus both allied attacks on one Grunt to cut the opposing action count. This is a one-scene ally battle, not a repeatable trainer fight or healing escort.
Pokémon Trainer DawnPokémon Trainer Dawn • source ID 625Partner team
- ClefairyMetronome / Gravity / Wake Up Slap / Sing
- KadabraPsybeam / Psycho Cut / Reflect / Light Screen
- GrotleRazor Leaf / Mega Drain / Bite / Curse
Partner role
Dawn joins the player for this scripted Galactic double battle; the displayed team branch depends on the player character and starter allocation. Only one of the listed partner branches applies to a save.
How to use the partner
Focus both allied attacks on one Grunt to cut the opposing action count. This is a one-scene ally battle, not a repeatable trainer fight or healing escort.
Pokémon Trainer DawnPokémon Trainer Dawn • source ID 626Partner team
- ClefairyMetronome / Gravity / Wake Up Slap / Sing
- KadabraPsybeam / Psycho Cut / Reflect / Light Screen
- MonfernoFlame Wheel / Mach Punch / Fury Swipes / Torment
Partner role
Dawn joins the player for this scripted Galactic double battle; the displayed team branch depends on the player character and starter allocation. Only one of the listed partner branches applies to a save.
How to use the partner
Focus both allied attacks on one Grunt to cut the opposing action count. This is a one-scene ally battle, not a repeatable trainer fight or healing escort.
Phase Checklist
- Galactic Warehouse Rescue and HM02 Fly — Leave Maylene's Gym; meet the assistant near the warehouse; win the tag battle against two Grunts; follow the fleeing Grunt inside; collect HM02; use Fly to restock or finish unlocked Cut cleanups before heading south.
- Route 214 and Ruin Maniac Cave — Sweep both Route 214 lanes; collect berries, visible items, and Dowsing spots; enter Ruin Maniac Cave; record the current tunnel stage; catch more Unown in Solaceon before returning for later stages; continue to Valor Lakefront.
- Valor Lakefront and Hotel Grand Lake — Check every hotel room; battle the restaurant's daily trainer pairs before closing time; inspect the Galactic-blocked lake entrance; continue south to Route 213; use the Dowsing Machine near reception there to find the Suite Key, then return it to its owner for the Lava Cookie.
- Route 213 — Clear beach trainers westward; visit Dr. Footstep for the friendship ribbon check; use Rock Smash on cliff pockets; collect hidden beach items; pass through the Pastoria gate; reserve Surf-only offshore items for later.
- Pastoria City, Great Marsh, and Barry — Heal and restock; visit the Move Reminder and scarf house; inspect the Great Marsh binoculars; enter once and collect HM05 immediately; sweep all six areas for items and desired catches; save before approaching the Gym; defeat Barry.
- Pastoria Gym and Crasher Wake — Bring Electric coverage for Gyarados and Grass for Quagsire; press switches in an order that creates each bridge path; battle every trainer; restore the final high-water route to Wake; save and heal before the leader.
- Galactic Grunt Chase and SecretPotion — Speak to the Grunt by the marsh; chase him east across Route 213; interact at every stop; defeat him near Valor Lakefront; speak to Cynthia; accept the SecretPotion; Fly to Solaceon for the northern Route 210 road.
- Route 212, Pokemon Mansion, and Trophy Garden — Start from Pastoria and clear Route 212 South; use narrow planks and mud ramps for every item; continue through Route 212 North; explore all mansion rooms; collect TM87 and the Soothe Bell; search Trophy Garden grass; exit at Hearthome.
Data Coverage
This phase owns 45 Diamond/Pearl source maps and publishes 251 encounter rows, 69 trainer rows, 77 visible/scripted items, and 35 hidden-item rows. Counts include explicit starter/rival branches and curated systems but never substitute Platinum encounters or story maps.
Dex quick links
