Opero 77

3★ Polearm

"A weapon equipped by Endfield operators to significantly boost their combat capabilities."

Combat Performance

Lv.99 Stats

309 MAX ATK

Attack Scaling

29 309

Where to Obtain

item obtain explore

Upgrade Calculator

Current: Lv.1Target: Lv.99

ATK Gain

29 → 309

EXP Required

2,559,740

Gold Cost

873,010

MANUAL

Tactical Manual

VERSATILE

Standard Operation

This weapon provides balanced stat increases. Suitable for any operator matching the weapon type.

Key Passive Ability

Assault: Armament Prep

"ATK +{atk_up:0}...."

Squad Synergy

Pairs well with generic ATK buffers.

Skill Progression

Main Attribute Boost [S]

ID: attr_main

Level	Effect Detail
Lv.1	Main attribute +8
Lv.2	Main attribute +15
Lv.3	Main attribute +21
Lv.4	Main attribute +28
Lv.5	Main attribute +35
Lv.6	Main attribute +42
Lv.7	Main attribute +48
Lv.8	Main attribute +55
Lv.9	Main attribute +65

Assault: Armament Prep

ID: force

Level	Effect Detail
Lv.1	ATK +12.
Lv.2	ATK +14.4.
Lv.3	ATK +16.8.
Lv.4	ATK +19.2.
Lv.5	ATK +21.6.
Lv.6	ATK +24.
Lv.7	ATK +26.4.
Lv.8	ATK +28.8.
Lv.9	ATK +33.6.

Refinement Bonuses

Refinement 1

Skill 2 +1

Refinement 2

Skill 2 +2

Refinement 3

Skill 2 +3

Refinement 4

Skill 2 +4

Refinement 5

Skill 2 +5

Breakthrough Materials

Phase	Level Cap	Cost	Materials
Phase 1	Lv.20	2,200 G	Cast Die x5 Kalkonyx x3
Phase 2	Lv.40	8,500 G	Cast Die x18 Auronyx x5
Phase 3	Lv.60	34,000 G	Heavy Cast Die x27 Umbronyx x5
Phase 4	Lv.80	155,000 G	Heavy Cast Die x50 Metadiastima Photoemission Tube x36 Igneosite x8

Recommended Operators

Common Questions

Is Opero 77 worth upgrading to Level 99? ▼

Yes, as a 3-Star Polearm, Opero 77 offers significant stat scaling. Maxing it out is recommended for endgame content if you have a compatible character.

How do I get Opero 77? ▼

Opero 77 can typically be obtained through the Weapon Gacha Banner or crafted via the Factory system (check in-game availability).