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Opero 77 Weapon in Arknights: Endfield

Opero 77 overview and upgrade info in Arknights: Endfield. Its passive, Assault: Armament Prep, is detailed below. We cover its stats and breakthrough materials on this page.

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Opero 77 Overview in Arknights: Endfield

Type: Polearm
Rarity: ★★★
Max Level: 90
Passive: Assault: Armament Prep

All Weapons in Arknights: Endfield

Quick Summary

Assault: Armament Prep (9/9):
ATK +34.

Opero 77 Stats and Skills

Lv. 90

Base ATK	283

Base ATK

283

3.1.

Potential Skill

Level 9

Assault: Armament Prep (9/9)

ATK +34.

3.2.

Passive and Special Attribute

Level	Main Attribute	Assault: Armament Prep
1	10	12
2	18	14.4
3	26	16.8
4	34	19.2
5	42	21.6
6	51	24
7	59	26.4
8	67	28.8
9	79	33.6

Breakthrough Materials for Opero 77

Use the slider to see cumulative materials needed for each breakthrough stage of Opero 77.

Stage Breakthrough 4

Gold	125700
Cast Die	23
Auronyx	5
Heavy Cast Die	50
Kalkonyx	3
Umbronyx	5
Igneosite	8
Metadiastima Photoemission Tube	16

Characters That Can Use Opero 77

Listed below are any of our character guides that use Opero 77. Please check their respective character guides for more information on how good of a weapon Opero 77 is for them.

No character guides currently use Opero 77. Check back later for updates.

Opero 77's Description

"...therefore, I must re-emphasize the necessity of making field practicality the prime design objective of any weapon — and that means the fuller grooves on 77 are obsolete and redundant features that serve no purpose! You must understand that our enemies neither bleed nor feel pain. Stop adopting design elements from those Rhodes Island engineering drawings.
Aesthetics?! I am taking that very personally, sir. The greatest virtue of any weapon lies not in its appearance! If I wanted to make things look nice, I would be working at Mieszko Industries and not at this blasted place!
— Meeting minutes of the third design conference for Opero 79"