The Bokuso Box is a new event-exclusive gadget in Genshin Impact that players have to use to get rid of the darkness, aka the purple aura, to progress through the seasonal event, Three Realms Gateway Offering.

Related | How to Get Bokuso Box in Genshin Impact

To progress through the different areas plagued by the purple aura, you need the Bokuso Arts that you can get by upgrading the Bokuso Box. And during all that, you can also claim a myriad of free rewards via the Statue of Vassals. 

To help you out, we prepared a handy Genshin Impact guide, sharing every Bokuso Box upgrade that you can get in the game. 

List of Bukuso Box Upgrades in Genshin Impact

There are two types of Bokuso Box upgrades that you find in Three Realms Gateway Offering event. 

The first one is associated with the Statue of Vassals, where you offer Light Realm Sigils obtained via opening treasure chests, unlocking waypoints, completing event objectives, and other similar things to receive some lucrative rewards while upgrading Bokuso Box’s energy limit. 

Related | How to Replenish Bokuso Box Energy in Genshin Impact

And the other upgrade is associated with the Bokuso Box gadget itself, where you offer Light Realm Core obtained from Luxurious Chests to unlock new Bokuso Arts.  

We have listed every upgrade related to the Bokuso Box down below:

Bokuso Box Upgrades Associated With Statue of Vassals

Lvl.SigilsBokuso Box Upgrades
180Corrosion Resistance ↑ 6
Will mark nearby Tokoyo Legumes and Aphotium Ore on the minimap
280Corrosion Resistance ↑ 12
Using the Bokuso Box will mark treasure chests and challenges in a small AoE on the minimap
380Corrosion Resistance ↑ 18
Max Bokuso Box Energy ↑ 330
480Corrosion Resistance ↑ 24
580Corrosion Resistance ↑ 30
6100Corrosion Resistance ↑ 51
The Bokuso Box is now able to disperse greater darkness
7100Corrosion Resistance ↑ 57
Max Bokuso Box Energy ↑ 360
8100Corrosion Resistance ↑ 63.
After the Bokuso Box is used on opponents, their Physical RES and All Elemental RES will be decreased by 10% for 30s
9100Corrosion Resistance ↑ 69
10100Corrosion Resistance ↑ 75
11120Corrosion Resistance ↑ 96
The Bokuso Box is now able to disperse greatest darkness
12120Corrosion Resistance ↑ 102.
Max Bokuso Box Energy ↑ 390.
13120Corrosion Resistance ↑ 108
After the Bokuso Box is used on opponents, their Physical RES and All Elemental RES will be decreased by 20% for 30s
14120Corrosion Resistance ↑ 114
The Bokuso Box can now directly mark the locations of Three Realms Gateway Offering treasure chests and challenges (50 maximum at one time)
15120Corrosion Resistance ↑ 120

Bokuso Box Upgrade List

LvlBokuso Box Upgrades
1Blessing of the Tortoise: Equipping the Bokuso Box grants your party members 30% increased DEF and 20% increased Max HP.
2Ward of Obscurity: Equipping the Bokuso Box grants your party members 25% increased Elemental Burst DMG.
3Boon of the Whalehunter: Equipping the Bokuso Box grants your party members who wield Swords, Claymores, and Polearms 30% increased Normal, Charged, and Plunging Attack DMG.
4Blessing of the Runebow: Equipping the Bokuso Box grants your party members who wield Bows and Catalysts 15% Normal ATK SPD.
5Grace of Conductivity: Equipping the Bokuso Box grants your party members increased Electro-Charged, Superconduct, Overloaded, and Electro Swirl DMG.
6Marathon Guerilla: Equipping the Bokuso Box grants your party members 15% decreased Stamina consumption and 20% increased Stamina Regeneration.

That’s it for now. Make sure to check out our coverage on the Genshin Impact version 2.5 update.

Genshin Impact is a free-to-play gacha-based role-playing game currently available on PC, PS4, PS5, Android, and iOS platforms.

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List of Bukuso Box Upgrades in Genshin Impact

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