Opero 77 Best Characters
✪ Check Game8 Endfield Twitter for daily tips!
★ Make your own tier list - contest is ongoing!
★ Best Builds: Gilberta | Laevatain | Ardelia
★ AIC Guides: Early | Mid | Late Game
★ Hot: Essence Tool | Reroll | Dailies | Blueprint
★ Umbral Monument: Stage 1 | Stage 2 | Stage 3
Opero 77 is a 3-star Polearm in Arknights: Endfield. See the best characters for Opero 77, its stats, skills, upgrade materials, and how to get Opero 77 here!
List of Contents
Opero 77 Stats and Effects
Opero 77 Weapon Overview
| Opero 77 Base Stats and Info | |
|---|---|
 |
|
| Type | |
| Rarity | |
| Base ATK | 283 |
| Weapon Skills |
• Main Attribute Boost (S)
Main Attribute Boost (S) Main Attribute +79
• Assault: Armament Prep
Assault: Armament Prep ATK +34 |
3Opero 77 Tier List Ranking
| Ranking |
|
|---|
Opero 77 Potentials
| Weapon Skill | Initial Lv. | |
|---|---|---|
| Potential 1 | Assault: Armament Prep | 2 |
| Potential 2 | Assault: Armament Prep | 3 |
| Potential 3 | Assault: Armament Prep | 4 |
| Potential 4 | Assault: Armament Prep | 5 |
| Potential 5 | Assault: Armament Prep | 6 |
Opero 77 Best Characters
Not Recommended for Any Characters
Opero 77 is not recommended for any characters in Arknights: Endfield, as there are better options available!
How to Get Opero 77
Obtained From Exploration and Gathering
Opero 77 can be obtained from exploring the map and opening treasure chests.
Opero 77 Weapon Skills
Main Attribute Boost (S)
| Rank | Effect |
|---|---|
| 1 | Main Attribute +10 |
| 2 | Main Attribute +18 |
| 3 | Main Attribute +26 |
| 4 | Main Attribute +34 |
| 5 | Main Attribute +42 |
| 6 | Main Attribute +51 |
| 7 | Main Attribute +59 |
| 8 | Main Attribute +67 |
| 9 | Main Attribute +79 |
Assault: Armament Prep
| Rank | Effect |
|---|---|
| 1 | ATK +12 |
| 2 | ATK +14 |
| 3 | ATK +17 |
| 4 | ATK +19 |
| 5 | ATK +22 |
| 6 | ATK +24 |
| 7 | ATK +26 |
| 8 | ATK +29 |
| 9 | ATK +34 |
Opero 77 Upgrade Materials
Total Tuning Materials
| Materials Needed | Total |
|---|---|
| x23 | |
| x3 | |
 Auronyx |
x5 |
| x50 | |
 Umbronyx |
x5 |
| D96 Steel Sample 4 | x16 |
| Wulingstone | x8 |
 T-Creds |
x125,700 |
| Tuning Stage | Required Materials |
|---|---|
| Stage 1 20 → 40 |  Cast Die x5 Kalkonyx x3 T-Creds x2,200 |
| Stage 2 40 → 60 | Cast Die x18 Auronyx x5 T-Creds x8,500 |
| Stage 3 60 → 80 |  Heavy Cast Die x20 Umbronyx x5 T-Creds x25,000 |
| Stage 4 80 → 90 | Heavy Cast Die x30 D96 Steel Sample 4 x16 Wulingstone x8 T-Creds x90,000 |
Arknights: Endfield Related Guides
Weapon Lists by Type
| Weapons by Type | |||||
|---|---|---|---|---|---|
 Swords |
 Great Swords |
 Polearms |
|||
 Handcannons |
 Arts Units |
||||
| Weapons by Rarity | |||||
Other Weapon Guides
| Miscellaneous Weapon Guides | |
|---|---|
| Best Weapons Tier List | Best Weapon for Each Character |
| How to Get Weapons | - |
All Polearm Type Weapons
 JET
|
 Mountain Bearer
|
 Valiant
|
 Chimeric Justice
|
 Cohesive Traction
|
 OBJ Razorhorn
|
 Aggeloslayer
|
 Pathfinder's Beacon
|
Opero 77
|
Comment
Author
Opero 77 Best Characters
Rankings
Gaming News
![Animal Crossing: New Horizons Review [Switch 2] | Needlessly Crossing Over to a New Generation](https://img.game8.co/4391759/47d0408b0b8a892e453a0b90f54beb8a.png/show)
![Neverness to Everness (NTE) Review [Beta Co-Ex Test] | Rolling the Dice on Something Special](https://img.game8.co/4414628/dd3192c8f1f074ea788451a11eb862a7.jpeg/thumb)
Popular Games
Genshin Impact Walkthrough & Guides Wiki
Honkai: Star Rail Walkthrough & Guides Wiki
Arknights: Endfield Walkthrough & Guides Wiki
Umamusume: Pretty Derby Walkthrough & Guides Wiki
Wuthering Waves Walkthrough & Guides Wiki
Pokemon TCG Pocket (PTCGP) Strategies & Guides Wiki
Abyss Walkthrough & Guides Wiki
Zenless Zone Zero Walkthrough & Guides Wiki
Digimon Story: Time Stranger Walkthrough & Guides Wiki
Clair Obscur: Expedition 33 Walkthrough & Guides Wiki
Recommended Games
Fire Emblem Heroes (FEH) Walkthrough & Guides Wiki
Pokemon Brilliant Diamond and Shining Pearl (BDSP) Walkthrough & Guides Wiki
Diablo 4: Vessel of Hatred Walkthrough & Guides Wiki
Super Smash Bros. Ultimate Walkthrough & Guides Wiki
Yu-Gi-Oh! Master Duel Walkthrough & Guides Wiki
Elden Ring Shadow of the Erdtree Walkthrough & Guides Wiki
Monster Hunter World Walkthrough & Guides Wiki
The Legend of Zelda: Tears of the Kingdom Walkthrough & Guides Wiki
Persona 3 Reload Walkthrough & Guides Wiki
Cyberpunk 2077: Ultimate Edition Walkthrough & Guides Wiki
All rights reserved
Copyright © 2022 - 2025 GRYPHLINE. All Rights Reserved.
The copyrights of videos of games used in our content and other intellectual property rights belong to the provider of the game.
The contents we provide on this site were created personally by members of the Game8 editorial department.
We refuse the right to reuse or repost content taken without our permission such as data or images to other sites.