Crimson Core Guides: Heatran Raid - Octillery Strat
Heatran Raid Guide
Heatran is a legendary Fire/Steel Pokémon found deep inside Stark Mountain in Sinnoh. In PokeMMO it functions as a 4-player raid: you need a full group, and the encounter is only available once every three months. After defeating it, every player in the group gets a guaranteed catch.
The strategy covered here is the Octillery Strat: a coordinated 4-player setup built around Heatran's biggest weakness: its own Roar. Octillery's Suction Cup ability makes it completely immune to Roar, so it anchors the fight while the rest of the team strips Heatran's item, slows it down, sets Rain, and piles on Ground and Water damage until it goes down.
Roar
Forces all your active Pokémon out and cycles in random party members. This is Heatran's most disruptive move. Octillery (Suction Cup) is immune and stays in regardless. Build your party order around this.
Magma Storm / Lava Plume
Heavy Fire-type spread moves that hit all players hard. Water Sport from P2's Pelipper halves all Fire damage for 5 turns. Keep Rain up: it further reduces Fire damage by 50%.
Flash Fire
Heatran's ability makes it completely immune to Fire moves and actually boosts its Fire attacks if hit by one. Never use a Fire move against Heatran. Every move in this guide is Ground, Water, or Fighting.
Held Item
Heatran carries a held item (commonly Leftovers) that would let it recover HP each turn. P3's Weavile uses Thief on Turn 1 to strip it immediately before Heatran can benefit.
Each player has a specific role in the raid and a party of 6 built around it. Pokémon are listed in party order: the order you send them in matters. Click your player number to see your full team.
You lead with a powerful Ground attacker, anchor the fight with Octillery (Roar-immune), set Light Screen for team protection, and finish with Jolteon's Fake Tears to amplify everyone's special damage.
You set Rain and Water Sport through Pelipper's Drizzle, slow Heatran with Gliscor's Bulldoze so Octillery can outspeed it, then anchor your own Octillery and sweep with Politoed and Kingdra under Rain.
You steal Heatran's item on turn 1 with Weavile, then set up Xatu's Light Screen and Defog to protect the group from hazards. Xatu's Magic Bounce also reflects any entry hazards Heatran tries to set.
You run a damage-focused build with Defog support through Pelipper. Your Politoed and Kingdra join P2 and P3 in the late-game Rain sweep that finishes the fight.
Get Magmortar on the right-hand side
Before the fight properly begins, check which side Magmortar spawns on. If it is not on the right-hand side, forfeit the match and try again. Keep forfeiting until Magmortar spawns on the right. The whole strategy is built around this positioning — getting it wrong means the turn order and targeting breaks down.
The strategy runs in 6 clean rounds. Each round's actions happen simultaneously: all 4 players act at the same time. Focus on following your player's action for each round, and the fight runs itself.
Excadrill
→
Earthquake
4× super effective
Excadrill
→
Earthquake
4× super effective
Weavile
→
Thief ★
Steals Heatran's item permanently
Excadrill
→
Drill Run
Single-target, high crit rate
Nidoking
→
Earth Power
Sheer Force, massive damage
Gliscor
→
Bulldoze ★
Heatran Speed −1 for 2 turns
Nidoking
→
Earth Power
Sheer Force, triple Earth Power
Nidoking
→
Earth Power
Sheer Force, triple Earth Power
Octillery ★
→
Hydro Pump
Cannot be Roared out (Suction Cup)
Octillery ★
→
Hydro Pump
Cannot be Roared out (Suction Cup)
Xatu
→
Defog → Light Screen
Magic Bounce reflects hazards back
Pelipper
→
Defog
Clears entry hazards
Starmie
→
Light Screen
8 turns (Light Clay): halves SpAtk damage
Pelipper
→
Water Sport ★
Rain auto-sets on entry. Water Sport halves all Fire damage
Flygon
→
Earth Power
Or HP Water if better coverage
Flygon
→
Earth Power
Double Flygon Earth Power
Kingdra
→
Rain Dance / Hydro Pump
Use Rain Dance if weather has expired; otherwise attack
Politoed
→
Weather Ball ★
Water Gem + Rain = massive one-shot power
Politoed
→
Weather Ball ★
Water Gem + Rain = massive one-shot power
Politoed
→
Weather Ball ★
Water Gem + Rain = massive one-shot power
Jolteon
→
Fake Tears ★
Heatran SpDef −2 stages: boosts all Water/Ground moves
Kingdra
→
Brine
Double damage when Heatran HP ≤50%
Kingdra
→
Brine
Double damage when Heatran HP ≤50%
Kingdra
→
Brine
Double damage when Heatran HP ≤50%
Thief on Turn 1: no exceptions
P3 uses Thief before anything else. If Heatran keeps its Leftovers, it recovers HP every turn for the entire raid. This single action permanently removes that. Do not delay it to "do damage first."
Never use a Fire move
Heatran's Flash Fire ability absorbs Fire moves completely and boosts its own Fire attacks after. Every move in this strategy is Ground, Water, or Fighting on purpose. If you accidentally use a Fire move, Heatran becomes even more dangerous.
Don't manually switch Octillery out
Octillery's whole purpose is soaking Roar while staying in. If you manually switch it out you waste the Suction Cup immunity. Let Heatran Roar at it: nothing happens, and Heatran wastes valuable PP.
Only one Pelipper runs Water Sport
P2's Pelipper uses Water Sport. P4's Pelipper uses Defog. Do not run two Water Sport Pelippers: you only need the effect once, and you lose your hazard clearer. Coordinate this with your group before entering.
Gliscor IVs matter: minimum HP and SpDef
P2's Gliscor needs minimum HP and SpDef IVs so it faints as quickly as possible after using Bulldoze. This is intentional: it lets Octillery come in on schedule. Tanky Gliscor that survives and blocks your Octillery timing is counterproductive.
Brine timing: wait for below 50%
Brine does 65 base power at full HP but 130 when the target is at 50% HP or lower. P2-P4's Kingdra should hold Brine until Heatran is visibly below half health. Firing Brine too early wastes the double-damage bonus.
