Rebecca is finally confirmed as a 5-star Electro Pistol resonator, joining Wuthering Waves as part of the Cyberpunk Edgerunners collaboration! Players will get her for FREE through event participation.
In this guide, LDShop compiles all the Rebecca materials you'll need to prefarm, covering Ascension Materials, Forte Materials, and Signature Weapon Materials.
Rebecca Materials Total
Prior to starting any farming, it is advisable to first consult the full material plan. The following overview compiles the essential resources required for Rebecca’s character ascension, Forte upgrades, bonus stat nodes, inherent skills, and signature weapon.

Image source: x user @Jiyan0117
Rebecca Ascension Materials
Ascension is the most important first step in building Rebecca. These materials are needed to increase her level cap and unlock her full stat progression, so they should be your top priority if you plan to use her right after pulling her.
|
Materials |
Total |
|
|
|
Our Choice |
46 |
|
|
Forget-Me-Not |
60 |
|
|
LF Mech Core |
4 |
|
|
MF Mech Core |
12 |
|
|
HF Mech Core |
12 |
|
|
FF Mech Core |
4 |
|
|
Shell Credit |
170,000 |
How to get Mech Core?
To obtain Mech Cores, players can turn to Twin Nova enemies, Forgery Challenges, material synthesis, or open-world enemy farming.

Rebecca Ascension Materials Per Level
Herere specific materials needed to upgrade Rebecca at each level:
|
Ascension Level |
Materials |
|
|
20 |
|
LF Mech Core × 4 |
|
|
Shell Credits × 5,000 |
|
|
40 |
|
Forget-Me-Not |
|
|
MF Mech Core × 4 |
|
|
|
Our Choice |
|
|
|
Shell Credits × 10,000 |
|
|
50 |
|
Forget-Me-Not |
|
|
MF Mech Core × 8 |
|
|
|
Our Choice |
|
|
|
Shell Credits × 15,000 |
|
|
60 |
|
Forget-Me-Not |
|
|
HF Mech Core × 4 |
|
|
|
Our Choice |
|
|
|
Shell Credits × 20,000 |
|
|
70 |
|
Forget-Me-Not |
|
|
HF Mech Core × 8 |
|
|
|
Our Choice |
|
|
|
Shell Credits × 40,000 |
|
|
80 |
|
Forget-Me-Not |
|
|
FF Mech Core × 4 |
|
|
|
Our Choice |
|
|
|
Shell Credits × 80,000 |
|
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Rebecca Forte Materials
Everything needed for her Forte upgrades is gathered here, giving you a transparent view of the total cost for maxing every key node. Don't overlook this section if you want Rebecca to feel like a genuine 5★ as soon as she sets foot on the field.
|
Materials |
Total |
|
|
|
We Who Question |
26 |
|
|
Incomplete Combustor |
25 |
|
|
Aftertune Combustor |
28 |
|
|
Remnant Combustor |
55 |
|
|
Reverb Combustor |
67 |
|
|
LF Mech Core |
25 |
|
|
MF Mech Core |
28 |
|
|
HF Mech Core |
40 |
|
|
FF Mech Core |
57 |
|
|
Shell Credit |
2,030,000 |
How to get Combustor?
You can get these materials by defeating the Lesson Embers in Roya Frostlands-Stagnant Run.

Rebecca Forte Materials Per Level
This per-level breakdown shows you exactly how much Crystals, Cores, boss mats, and Credits need to level up Rebecca's forte.
|
Main Node Level |
Forte Materials |
|
|
2 |
|
Incomplete Combustor × 2 |
|
|
LF Mech Core × 2 |
|
|
|
Shell Credits × 1,500 |
|
|
3 |
|
Incomplete Combustor ×3 |
|
|
LF Mech Core × 3 |
|
|
|
Shell Credits × 2,000 |
|
|
4 |
|
Aftertune Combustor × 2 |
|
|
MF Mech Core × 2 |
|
|
|
Shell Credits × 4,500 |
|
|
5 |
|
Aftertune Combustor × 3 |
|
|
MF Mech Core × 3 |
|
|
|
Shell Credits × 6,000 |
|
|
6 |
|
Remnant Combustor × 3 |
|
|
HF Mech Core × 2 |
|
|
|
Shell Credits × 16,000 |
|
|
7 |
|
Remnant Combustor × 5 |
|
|
HF Mech Core × 3 |
|
|
|
We Who Question x1 |
|
|
|
Shell Credits × 30,000 |
|
|
8 |
|
Reverb Combustor × 2 |
|
|
FF Mech Core × 2 |
|
|
|
We Who Question x1 |
|
|
|
Shell Credits × 50,000 |
|
|
9 |
|
Reverb Combustor × 3 |
|
|
FF Mech Core × 3 |
|
|
|
We Who Question x1 |
|
|
|
Shell Credits × 70,000 |
|
|
10 |
|
Reverb Combustor × 6 |
|
|
FF Mech Core × 4 |
|
|
|
We Who Question x1 |
|
|
|
Shell Credits × 100,000 |
|
Rebecca Bonus Stats Materials
Rebecca's bonus stat nodes offer smaller improvements, but they still play a role when you're fine-tuning her final build. While these nodes won't transform her overall playstyle, the additional stats can enhance her reliability and total damage output.
|
Bonus Stats |
Forte Materials |
|
|
Stat Bonus 1 |
|
Remnant Combustor × 3 |
|
|
HF Mech Core × 3 |
|
|
|
Shell Credits × 50,000 |
|
|
Stat Bonus 2 |
|
Reverb Combustor × 3 |
|
|
FF Mech Core × 3 |
|
|
|
We Who Question x1 |
|
|
|
Shell Credits × 100,000 |
|
Rebecca Inherent Skill Materials
Rebecca's inherent skills offer passive benefits that improve her kit's flow. After finishing her main Forte nodes, these upgrades are often worthwhile—especially if they enhance her rotation, damage, or team utility.
|
Inherent Skill |
Forte Materials |
|
|
Inherent Skill 1 |
|
Aftertune Combustor × 3 |
|
|
MF Mech Core × 3 |
|
|
|
We Who Question x1 |
|
|
|
Shell Credits × 10,000 |
|
|
Inherent Skill 2 |
|
Remnant Combustor × 3 |
|
|
HF Mech Core × 3 |
|
|
|
We Who Question x1 |
|
|
|
Shell Credits × 20,000 |
|
Conclusion
As long as you participate in the event in time, you'll be able to get Rebecca. A free 5-star character is worth building——there's no reason not to. So start preparing for her arrival now by farming her materials in advance!
Wuthering Waves Version 3.4 will also introduce new characters Lucy and Lucilla. If they're on your wishlist, you can also prepare your pulls ahead of time with LDShop Wuthering Waves top-up. It's a simple and reliable way to get ready for the 3.4 collaboration banners!

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Alan Turing Experienced Game Editor
Alan Turing is a senior game editor at LDShop.gg, specializing in in-depth coverage of RPG and strategy games. With a strong focus on titles like Wuthering Waves, Honkai: Star Rail and Arknights, she combines industry insight with firsthand player experience to deliver clear, informative, and actionable content. Her work is dedicated to helping gamers make smarter decisions—whether it’s understanding new updates or optimizing their in-game strategy.
















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