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Two maxed Neptilius rotate 700-power bursts into a 1.5x Water weakness while drone fire feeds the active carry up to 150% Attack and Defense.
Hard Mode Marcus and Faleris is a bait. Faleris is Fire, takes 1.5x damage from Water, and every returning player reads that as an invitation to field a Water party. Hard Mode punishes exactly that read: four of its ten attacks are Electric (Thunder Rail, Thunderstorm, All Range Thunder and Thunder Rain), and every one of them hits Water Pals super effectively. This build takes the Water damage anyway and buys insurance everywhere else. Two identically built Neptilius alternate burst windows into the weakness, Jormuntide raises everyone's damage to Soaked targets by 50% to 65%, Orserk turns sustained bullet fire into up to 150% Attack and Defense on the active carry, and Silvegis cuts the damage your shield takes by up to 80% while you stand in the open operating drones. The execution requirement is one habit: recall the active Neptilius on every Electric wind-up, and let the second copy cover the gap.
NeptiliusPrimary Water burstNeptiliusRotation carry
JormuntideSoak amplifier
OrserkStack engine
SilvegisPlayer shield wallThe PIDF Tower rematch is the game asking whether you can counter without being countered. Hard Mode Marcus and Faleris sits at level 78 with 526,900 HP behind a five-minute timer and a four-soldier escort, and while Faleris is a Fire Pal that takes 1.5x damage from Water, four of its ten attacks are Electric and exist to delete the Water party you were invited to bring. Runs die three ways here: the escort never gets cleared, a carry stands in an Electric cast, or a cautious rotation banks cooldowns the timer never refunds.
Every slot has a job. The cards below show the exact synergy, its rank range, who it affects, and a mapped route to recruiting that pal.
Follows your attacks with Water spear strikes on a 5 second cooldown and brings a 145 base attack stat. Its swim-speed rider (10% to 25%) begins at rank 2, not rank 1, and never matters inside a tower.
Start with the mapped field-boss encounter. The lowest mapped encounter is level 60.
The second copy buys a fresh pool of Thalassonic Laser and Geyser Gush casts, a second health bar, and healing time for the first. One badly hurt carry becomes a rotation problem instead of a failed run.
Start with the mapped field-boss encounter. The lowest mapped encounter is level 60.
Raises your and your Pals' damage to Soaked targets by 50% to 65%. All three recommended Neptilius skills apply Soak, so the amplifier runs at close to full uptime after the first hit lands.
Start with the mapped field-boss encounter. The lowest mapped encounter is level 55.
Every bullet hit gives the active Pal 1% to 5% Attack and Defense for 5 seconds, stacking to 30: up to 150% of each at rank 5. The buff decays the moment your guns and drones stop connecting.
Catch it in the wild. Only spawns on the World Tree region.
Cuts damage your shield takes by 65% to 80% and shortens shield-regeneration delay by 30% to 60%. It buffs you, not Neptilius: you are the one standing in the open running drones and swaps.
Start with the mapped field-boss encounter. The lowest mapped encounter is level 62.
Rocket the four PIDF soldiers before touching Faleris. Deploy the Drone Launcher and keep its drones connected, because every hit feeds Orserk stacks. Land one Water skill to apply Soak, Megaboost the first Neptilius, mount, and dump Thalassonic Laser, Geyser Gush and Hydro Slicer. Dismount, let the AI take a second pass, then swap to the second Neptilius and repeat. Recall whichever copy is out the moment an Electric attack starts charging.
Compare every surfaced partner effect at base rank and full condensation. Effects marked Unique can still scale by rank, but a second carrier of the same species adds nothing. Two different species carrying the same effect do add together.
| Pal / role | Partner effect | Affects | Rank 1 | Rank 5 |
|---|---|---|---|---|
 JormuntideSoak amplifier | Damage to Soaked EnemiesUnique | You and pal | 50% | 65% |
 OrserkStack engine | Attack and Defense per Bullet HitUnique | Active pal | 1% | 5% |
 SilvegisPlayer shield wall | Shield Regeneration Delay ReductionUnique | You | 30% | 60% |
| SilvegisPlayer shield wall | Shield Damage ReductionUnique | You | 65% | 80% |
The four carry passives go on both Neptilius, identically, and they are the defensive endgame configuration rather than the highest paper damage: this fight punishes half-built health bars. The trainer passives ride the three support slots, which never leave their spheres.
Active skill cooldown reduction 30% Attack +10%
30% active-skill cooldown reduction plus 10% Attack. The burst skills run 30 and 16 second cooldowns, so this is the passive that turns two carries into a near-continuous rotation.
Rolls in the standard passive pool, so it can arrive on a wild catch: breed it across from any carrier or apply an implant.
20% increase to Water attack damage 20% increase to Ice attack damage 20% increase to defense.
20% Water damage, 20% Defense, and a 20% Ice rider this fight never uses. The Water line is the only passive in this set that raises the burst skills directly.
Our catalog places it in no random roll pool, so it will not appear on an ordinary wild catch: plan on breeding it across from a carrier that already has it.
Absorbs 100% of damage dealt and restores Health. Pal Auto Health Regeneration Rate +100%. Attack +15%.
The catalog text reads: absorbs 100% of damage dealt and restores Health, doubles Pal auto health regeneration, and adds 15% Attack. Community tables price the realized lifesteal far lower, near 5%, which we cannot confirm; either way it is the sustain that keeps two carries fighting for five minutes.
Mutation pool only, so it never rolls on an ordinary wild catch. Breed through a mutation line or pull the implant from the ancient relic recycler.
Defense +30% Immune to Flinch Immune to Knockback
30% Defense plus immunity to flinch and knockback. The immunities are the point: a mounted burst that cannot be staggered finishes its full three-skill dump under fire.
Standard roll pool. It turns up on wild catches often enough that breeding it across is rarely the bottleneck.
10% increase in Player Attack.
10% player attack per copy, and it works from a party slot the support never leaves. Your rockets and gunfire scale off it, and every bullet also has an Orserk job to do.
30% player attack across the three support slots
Sold as an implant by the bounty officer at Fisherman Point for bounty tokens, then reapplied to any Pal for 50,000 gold a time.
10% increase in Player Defense.
10% player defense per copy, the partner to Silvegis's shield mitigation: what the shield does not absorb, this shrinks.
30% player defense across the three support slots
Same bounty officer, same reapplication cost. Buy both on one trip.
Three tools run the fight: a rocket for the escort, drones for Orserk, and the Megaboost Gun for the carry. The accessory slots go all-in on the active Pal, because in this build the active Pal is the damage.
All three are craftable before the rematch; the Drone Launcher is the late unlock at technology level 77 and the one this build cannot skip.
One rocket into the opening cluster deletes most of the escort at range. It is a single-shot weapon, so fire it before you deploy and let Neptilius mop up the survivors.
A Rocket Launcher that can fire a powerful round from long distances.
Deploys up to nine autonomous drones, and every drone hit counts as a bullet for Orserk. Launch them before you mount so stacks keep building while you ride, and stay close enough that they keep connecting.
A launcher that fires drones which perform autonomous attacks. Capable of deploying up to 9 units, enabling sustained suppression.
Shoot your own Neptilius before each burst window: it boosts the target's attack and defense, and this improved model boosts harder and lasts longer than the base gun. Never spend its shots on Faleris.
Firing it at an allied Pal boosts their attack and defense, while hitting an enemy deals damage. Thanks to improvements, the boost is stronger and lasts longer, and it deals more damage to enemies.
All four are schematic finds rather than technology unlocks. Fill the Water damage slots first, then the shared attack line.
Raises the active Pal's Attack and significantly increases their Water damage. Every damage skill on this page is Water, so this is the first slot filled.
An accessory that raises the Attack of the Pal fighting alongside you. It also significantly increases their Water damage.
The defensive twin: active-Pal Defense plus the same significant Water damage increase. Defense on the carry is exactly what the Electric suite is testing.
An accessory that raises the Defense of the Pal fighting alongside you. It also significantly increases their Water damage.
Greatly reduces the Fire damage your active Pal takes and raises their Water damage, stacked on top of Water's natural Fire resistance. It is named for this matchup.
An accessory that greatly reduces incoming Fire damage of the Pal fighting alongside you. It also significantly increases the Water damage of the Pal fighting alongside you.
Greatly raises your Attack and the active Pal's in one slot, so it pays on both halves of the build: your rocket and gunfire, and the Neptilius burst.
An accessory that greatly raises your Attack, and that of the Pal fighting alongside you.
The consumables exist for one purpose: keeping two Neptilius alive and rotating for five minutes.
Heal the resting carry between its burst windows. Note the name: several guides call this Advanced Recovery Medicine, and no such item exists. The in-game item is Advanced Recovery Meds.
Medicine that heals wounds over time. Extremely high quality, it rapidly restores HP before your eyes.
Revives a downed Pal mid-fight. With two carries, one Revival Potion converts a lost Neptilius back into the rotation instead of into a failed run.
A potion that revives a Pal that has been injured and is unable to move.
Attack and defense food replace each other, and this build already buys its defense from Silvegis and the accessories. Eat the attack buff and re-enter if it expired in a retry queue.
Silvegis multiplies whatever shield you bring: an 80% damage cut on a bigger pool is more effective shield health, and it starts regenerating 60% sooner.
An ordering rather than a budget, and it leans attack because the party already covers defense twice over. The player is a real damage source in this build, not a spectator with a buff bar.
The loop below runs from the moment the escort dies until the fight ends, and it treats both Neptilius as one carry with two cooldown pools. The phase plan schedules it against the clock; this is the machine itself.
Up to nine drones attack autonomously, and each hit gives the active Pal 1% to 5% Attack and Defense for 5 seconds, stacking to 30. Stay close enough that they keep landing: out of range, the stacks decay and the carry deflates.
Thalassonic Laser, Geyser Gush and Hydro Slicer all inflict Soak, and Jormuntide raises everyone's damage to Soaked targets by 50% to 65%. After the opening hit this maintains itself; never let a long recall window pass without a single Water hit.
The Megaboost Gun raises the target Pal's attack and defense, so spend it on the Neptilius you are about to ride, not the one resting. Fire it during the approach, then mount immediately so the buff overlaps the whole burst.
Ride the active Neptilius and cast Thalassonic Laser, then Geyser Gush, then Hydro Slicer. Community skill testing reports Geyser Gush and Hydro Slicer overperform their listed power against large targets when their secondary eruptions connect, and Faleris is a large target.
Dismount as the third cast lands. The AI-controlled Neptilius runs its own attack rotation while you return to gunfire and stack maintenance, which is a second pass of Water damage you did not have to pilot.
When the first copy's casts are spent, recall it and deploy the second Neptilius for the identical sequence, then swap back once the first pool recovers. Two pools alternating is the entire damage model, and the resting copy healing up is part of it, not wasted time.
This rule overrides everything above. Water resistance makes the Fire suite manageable and does nothing against the Electric four, so the moment one starts charging, the active Neptilius goes back in its sphere. Seconds of lost damage are cheaper than a maxed carry.
Five minutes, scheduled backwards. The escort must die inside the first thirty seconds, the amplifiers must be running by one minute, and the boss bar must cross half by 2:30 or the run is behind pace. Every window below assumes the rotation from the section above is running underneath it.
Fire the Rocket Launcher into the opening cluster of two PIDF Riflemen and two Elites, then deploy the first Neptilius to mop up with Geyser Gush or Hydro Slicer. Aim at a straggler and press the Attack That Enemy command (mouse wheel or right stick) to force targeting. Do not touch Faleris yet.
All four soldiers are dead and your shield is intact or already regenerating.
Deploy the Drone Launcher and confirm its drones are connecting with Faleris, because every hit is an Orserk stack. Land any Water skill to apply Soak and switch Jormuntide's amplifier on. Fire the Megaboost Gun into your first Neptilius, then mount it.
Faleris is Soaked and the Orserk buff is visibly climbing on the active carry.
Dump the full mounted burst: Thalassonic Laser, Geyser Gush, Hydro Slicer. Dismount and let the AI-controlled Neptilius run its own casts while you keep gunfire and drones feeding stacks. When its rotation is spent, recall it and deploy the second Neptilius for the same sequence.
Alternate carries as cooldowns allow and re-Megaboost whenever the gun is ready. This is where the Electric suite starts deciding the run: the moment Thunder Rail, Thunderstorm, All Range Thunder or Thunder Rain begins charging, recall the active copy and strafe until it resolves.
The boss bar is at or below half by 2:30; that is the pace the timer demands.
Nothing new should happen here, which is the point. Refresh drones as they expire, heal the resting Neptilius with Advanced Recovery Meds between its windows, and keep working the arena perimeter so Raging Flame Wave's converging tornadoes merge behind you instead of on you.
Stop banking. Both burst pools go out the moment they are ready, your own gunfire fills every gap between casts, and a downed carry gets a Revival Potion instead of a retreat. The timer, not Faleris, is the boss in this window: cooldowns held in reserve are damage the run never dealt.
Ten attacks sort into two jobs. The Fire suite is aimed at you, the player: Neptilius resists it, your shield and Silvegis absorb it, and positioning solves it. The Electric suite is aimed at your Pals, hits Water super effectively, and is the only thing on this list that ends runs. Spend the counterplay budget there: learn the four wind-ups and recall on every one.
All four Electric attacks hit Water Pals super effectively, and all four are telegraphed. The response always starts the same way: the active Neptilius goes back in its sphere before the cast lands.
The charge-up is your recall window. Pull Neptilius, then strafe perpendicular to Faleris's facing: the simultaneous shocks fire along its line, and sideways movement takes you out of it.
The lightning tornado tracks slowly, so it kills Pals left standing in it, not players paying attention. Recall, walk a wide arc around it, and redeploy once it dissipates.
The strikes travel outward in straight radial lines. Back off and pick a gap between two lines rather than running along one, and recall first if Neptilius is deployed near the origin.
Delayed strikes land on the marked target after a beat. If that target is Neptilius, recall it and let the strikes waste themselves; if it is you, keep sprinting until the last bolt lands.
Neptilius resists the Fire suite and Silvegis absorbs most of what reaches your shield, so these are positioning tests for the player rather than recall calls.
Hold the arena perimeter during the glide: the scorching tornadoes converge on the centre, so the middle of the arena is the only place this attack is lethal. Keep the camera clear of walls.
Keep lateral movement and dodge late, because the explosion is wide enough to punish an early roll. Never take it pinned between Faleris and a wall, where the camera hides the throw.
The bombs go up, pause, then rain down around Faleris. On the launch, step outside the impact ring, then re-enter drone range once the last bomb lands so Orserk stacks do not decay.
Each of these is genuinely advocated for this fight, and each trades away the property this build is named for: a clear that does not depend on a clean run.
The case for it
Its 40% Attack is the largest attack passive in the game, with 20% Defense attached, and a burst build wants the biggest multiplier on its two damage windows.
It also halves maximum Health, and Hard Mode Faleris carries four Electric attacks that already hit Water Pals super effectively. A half-health Neptilius dies to the exact attacks this fight is built around, so the foolproof configuration runs Immortality and Diamond Body instead.
The case for it
Dropping the shield support for Penking Lux adds 25% to 40% Water damage on weakness hits, party wide, and Faleris is weak to Water. It is the faster single-player clear.
It is also the version where a mistake costs the run. You spend this fight in the open feeding drones and swapping carries, and the 65% to 80% shield cut is what makes that survivable. Take the slower clear that finishes.
The case for it
The second Neptilius adds no partner-skill effect, so replacing it with another amplifier looks like free damage.
The duplicate was never there for its partner skill. It is a second set of burst cooldowns and a second health bar, and the damage check is paced around the two of them alternating. One carry banking cooldowns loses to the clock, and one bad Electric hit ends the run.
Nothing here is a lucky drop except the accessory schematics. The rest is a checklist: two carries, three ranked supports, four passives each, three weapons.
Keep the build's identity while adapting the lineup to the pals you own or the encounter ahead.
Because the fight is designed to punish the obvious counter. Faleris is Fire and takes 1.5x damage from Water, but four of its ten Hard Mode attacks (Thunder Rail, Thunderstorm, All Range Thunder and Thunder Rain) are Electric, and Electric hits Water Pals super effectively. Water resistance handles the Fire suite; nothing handles the Electric suite except recalling your Pal during the wind-up. That habit, not the party list, is the clear.
No. (Does not stack) in Palworld 1.0 means a second copy of the same species adds nothing, and Sentinel of the Great Sea has no party buff to double anyway. The second Neptilius is there for its second set of skill cooldowns and its second health pool: one bursts while the other recovers, which is what keeps damage continuous across five minutes.
Railbolt is the skill's internal row id, not its display name. Our catalog shows it as Thunder Rail: Electric, 600 power, on a 30 second cooldown, and it is one of the four Electric attacks Hard Mode Faleris uses. Thunder Rain is a separate, weaker skill at 400 power; guides that use the two names interchangeably are collapsing two different attacks.
The boss is level 78 with 526,900 HP on a five-minute timer, so this is an endgame check, not a threshold you can squeak past. Take both Neptilius to the level 80 cap, fully condensed, Soul-enhanced and Awakened. Palworld 1.0 rebalanced Hard Mode towers around that finished progression, and the timer is priced accordingly.
Players report Ferocious Thunder Dragon sometimes failing to apply on dedicated and multiplayer servers while working in single player, with no fix listed as of the v1.0.2 notes. Test before the real attempt: fire several shots and watch for the buff icon or the active Pal's stats rising. If it is dead on your server, swap Orserk for Penking Lux, whose 25% to 40% Water weakness bonus needs no stacks at all.
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