To unlock the Ruptor Derelictus skin for Ruinous Oath, enter the Chapel with a Mastered Enchant Relic, take Scourge’s Ruinous Oath quest, catch one required boss fish, then perfect-catch three Sparkling Mastered Colossal Dragons, Leviathans, or Frost Worms before returning to claim the skin.
Ruptor Derelictus is a cosmetic Ruinous Oath rod skin added with the Chapel update in Fisch. You must already own Ruinous Oath before this quest matters, since Scourge is specifically tied to that rod’s Chapel skin route.
The unlock is short on paper, but it asks for awkward mutation control: a Mastered Enchant Relic to enter Chapel, then three fish that are both Sparkling and Mastered. Bring mutation help before starting so you are not burning rare totems on failed rolls.
- Ruptor Derelictus requirements and reward
- Prep items for the Chapel route
- Reach Chapel through Crystal Cove
- How to unlock the Ruptor Derelictus route in Fisch
- Scourge is the Ruinous Oath NPC
- Scourge’s first fish objective
- Three Sparkling Mastered catches
- Claim Ruptor Derelictus
- Common blockers while getting Ruptor Derelictus
- Frequently Asked Questions
Ruptor Derelictus requirements and reward
| Requirement | Detail |
|---|---|
| Skin name | Ruptor Derelictus |
| Required rod | Ruinous Oath |
| Starting area | Chapel, entered from the Crystal Cove waterfall |
| NPC | Scourge, the red NPC |
| First objective | Catch one eligible Ancient Dragon, Colossal Dragon, Frost Worm, or Leviathan-type fish |
| Final objective | Perfect-catch three Sparkling Mastered eligible fish |
| Reward behavior | Cosmetic skin only, with no separate passive or fishing animation at the time shown |
Ruptor Derelictus is earned from the red Chapel NPC, Scourge, after finishing his two-part quest for Ruinous Oath. The skin changes the rod’s look; at the time shown, it does not add a separate fishing passive or a special fishing animation.
Prep items for the Chapel route
| Item | Use |
|---|---|
| Ruinous Oath | Required before starting Scourge’s skin quest |
| Mastered Enchant Relic | Consumed at the Crystal Cove waterfall to enter Chapel |
| Relic Construct companion | Improves relic farming odds while fishing in The Depths |
| Scavenger enchant | Optional extra help when farming relics |
| Mystic Mirror | Sets a Chapel return point so you do not spend another Mastered Enchant Relic each visit |
| Sparkling Totems | Adds Sparkling mutation chance for the final three catches |
| Cosmic Relic companion bonus | Adds another 3% Sparkling chance through the Relic Construct |
| Glittered enchant | Adds another 3% Sparkling chance |
| Neuro Slug bait | Useful resilience for difficult dragon catches |
| Luck Potion | Helps while fishing the target hunt |
| Shell of Endurance | Gives a resilience buff for hard perfect catches |
Before entering Chapel, make sure your Ruinous Oath is ready. The rod itself is obtained in Crimson Cavern; it requires Level 750, a full Shiny and Sparkling Crimson Cavern Bestiary, and 5,000,000C$.
The rest of your setup should reduce relic farming, improve Sparkling odds, and make the dragon catches less punishing. The exact mutation rates mentioned by early players are still best treated as working estimates, but the setup below is the route used to push the odds in your favor.
Reach Chapel through Crystal Cove
How to unlock the Ruptor Derelictus route in Fisch
This route gets you into Chapel, starts Scourge’s quest, and finishes both fish objectives for the Ruptor Derelictus skin.
STEP 1/16
Find a Strange Whirlpool
Enter a Strange Whirlpool, pass through Vertigo’s Deep, and continue into The Depths.
STEP 2/16
Farm a Mastered Enchant Relic
Fish in The Depths until you get a Mastered Enchant Relic, using Relic Construct for better relic odds.
STEP 3/16
Perfect-catch the relic if needed
Keep the relic inside the control bar the whole time to force the Mastered mutation.
STEP 4/16
Go to Crystal Cove
Head to Crystal Cove and move to the waterfall behind the bridge area.
STEP 5/16
Use the relic at the waterfall
Hold the Mastered Enchant Relic, interact with the waterfall, and consume the relic to enter Chapel.
STEP 6/16
Choose the red NPC
Speak to Scourge, the red NPC, to start the Ruinous Oath skin quest.
STEP 7/16
Set a Mystic Mirror point
Use Mystic Mirror in Chapel so you can return without spending another Mastered Enchant Relic.
STEP 8/16
Spawn a Colossal Dragon hunt
Travel to Luminescent Cavern and use a dragon totem to spawn a Colossal Dragon or Colossal Ancient Dragon hunt.
STEP 9/16
Catch the first quest fish
Use Neuro Slug bait and a Luck Potion if available, then catch one eligible fish for Scourge’s first objective.
STEP 10/16
Return to Scourge
Use Mystic Mirror to go back to Chapel and turn in the first objective.
STEP 11/16
Start the final objective
Accept the objective to perfect-catch three Sparkling Mastered Colossal Dragons, Leviathans, or Frost Worms.
STEP 12/16
Activate Sparkling help
Use a Sparkling Totem, then stack the Cosmic Relic companion bonus and Glittered enchant if you have them.
STEP 13/16
Perfect-catch valid targets
Keep each eligible fish inside the control bar so it becomes Mastered, and only count catches that also roll Sparkling.
STEP 14/16
Drop non-Sparkling hooks
If the hooked fish does not roll Sparkling, deliberately lose it to avoid wasting more dragon totems.
STEP 15/16
Claim the skin from Scourge
After the third valid catch, return to Scourge in Chapel to unlock Ruptor Derelictus.
STEP 16/16
Equip Ruptor Derelictus
Open your bag, equip the skin, and check the red-orange sword-like look on Ruinous Oath.
Video help
Scourge is the Ruinous Oath NPC
Inside Chapel, the rod skin NPCs are color-coded, and Scourge is the one you need for this unlock. Pick the red NPC for the Ruinous Oath quest.
Do not start with the pink, green, blue, or yellow NPCs if your goal is Ruptor Derelictus. Those are for other Chapel rod skin routes, while the red NPC handles the Ruinous Oath skin.
Scourge’s first fish objective
Scourge’s first objective asks for only one fish from his allowed list. Valid choices include Ancient Dragon, Colossal Dragon, Colossal Ethereal Dragon, Frost Worm, or Leviathan; you do not need to catch every listed fish.
A dragon totem is the fastest clean route because it can spawn a Colossal Dragon or Colossal Ancient Dragon hunt. Use Neuro Slug bait for resilience, drink a Luck Potion if you have one, catch the target, then return to Scourge with Mystic Mirror.
Three Sparkling Mastered catches
The final objective is the real wall: you need three eligible fish that are both Sparkling and Mastered. The target pool here is Colossal Dragons, Leviathans, or Frost Worms, and each one must be a perfect catch so the Mastered condition is satisfied.
Deliberately lose a hooked eligible fish if it is not Sparkling; this preserves your dragon totems for catches that can actually count toward Scourge’s final objective.
Once you hook an eligible target, watch the mutation result before committing resources and focus. If it rolls Sparkling, keep it inside the control bar the whole time for the Mastered mutation; if it does not, let it go and reset for another valid roll.
If the catch window feels too harsh, detour to Mermaid Cove near the Grand Reef and use shells for Shell of Endurance. The resilience buff makes the perfect-catch requirement much less punishing on dragons and other heavy targets.
Claim Ruptor Derelictus
After your third valid Sparkling Mastered catch, return to Scourge in Chapel and turn in the final objective. The reward unlocks immediately as the Ruptor Derelictus skin for Ruinous Oath.
Open your bag, equip the skin, and inspect the new rod model. It has a sword-like shape with a glowing red-orange look, but its value is visual rather than mechanical.
Common blockers while getting Ruptor Derelictus
If the Crystal Cove waterfall does not open, check the relic first. The Chapel entrance needs a Mastered Enchant Relic; a regular relic will not do the job.
Mystic Mirror is worth using as soon as you enter Chapel because Scourge’s route sends you out for fish and back again. Without that return point, each Chapel re-entry means farming and spending another Mastered Enchant Relic.
For the last objective, the biggest waste is finishing hard dragon catches that cannot count. If a target fails to roll Sparkling, drop it early, keep your totems for better attempts, and use Shell of Endurance when the control bar fight is the part costing you runs.
Frequently Asked Questions
Do you need the Ruinous Oath rod before starting Scourge’s quest?
Yes. Scourge’s Chapel quest is for the Ruinous Oath skin, so you need the rod before the unlock route is useful.
Do you need to catch every fish Scourge lists in the first quest?
No. The first objective only asks for one eligible catch from the list, so a single qualifying dragon, Frost Worm, or Leviathan-type target is enough.
What counts for the three Sparkling Mastered catches?
Each catch must be an eligible target and must have both mutations at once: Sparkling from the mutation roll and Mastered from keeping the fish inside the control bar for the full catch.
How do you get into the Chapel if the waterfall is sealed?
Bring a Mastered Enchant Relic to the Crystal Cove waterfall, interact with the sealed entrance, and consume the relic there.
Does Ruptor Derelictus add a passive or special fishing animation?
No. Ruptor Derelictus is a cosmetic rod skin; the showcased version does not add its own passive or fishing animation.
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