
If you’re grinding Season 11 of Anime Vanguards, Arbiter is the unit you’re working toward. She’s a limited-time Exclusive-tier DPS tower, and once evolved, she hits Meta tier. In this guide, I’ll walk you through exactly how to unlock her, what materials you need for evolution, her abilities, and how to get the most out of her in battle.
| Feature | Details |
|---|---|
| Unit Name | Arbiter / Arbiter (Of the Void) |
| Rarity | Exclusive |
| Type | DPS |
| Inspiration | Acheron (Honkai: Star Rail) |
| How to Get | Season 11 Battle Pass β Tier 30 |
| Status | Limited-Time |

Arbiter cannot be summoned or obtained from the Special Banner. The only way to unlock her is by reaching Tier 30 of the Season 11 Battle Pass (Demonic Rampage update, released February 27, 2026).
Fastest ways to earn Battle Pass XP:
The premium Battle Pass costs 799 Robux, and you can skip 10 levels for an additional 999 Robux if you’re short on time.
Evolving Arbiter into Arbiter (Of the Void) is non-negotiable β her evolved form is what makes her a Meta-DPS unit.
Evolution Requirements:
| Material | Quantity | How to Obtain |
|---|---|---|
| Galaxy Lotus | 1 | Auto-obtained when you unlock Arbiter |
| Green Essence | Multiple | Challenges, Crafting, Shops |
| Blue Essence | Multiple | Challenges, Crafting, Shops |
| Purple Essence | Multiple | Challenges, Crafting, Legend Stages |
| Rainbow Essence | Multiple | Challenges, Crafting, Shops |
| Gold | 15,000 | Gameplay rewards |
Essences can be farmed from Challenges and Crafting. Legend Stages are the most reliable source for Purple Essence specifically. Don’t delay the evolution β base Arbiter is significantly weaker.
Base Arbiter Voidbringer (Passive) Every time Arbiter attacks an enemy, she fires a follow-up with Attack 1, dealing 50% damage (5-second cooldown). That follow-up applies Bleed for 50% of her damage over 8 seconds.
Arbiter (Of the Void) β Harbinger of Nothingness (Passive) This is where she gets scary. Each time any follow-up triggers within her range, she gains 1 stack of Wilted. At 20 stacks, the active ability “I Weep for the Departed” unlocks. She also gains +5% damage per Wilted stack β meaning at 20 stacks, that’s a 100% damage bonus before the active even fires.
Key takeaway: Stack Wilted as fast as possible. Use her alongside other follow-up units to accelerate stack generation.
No. Arbiter is a limited-time unit tied exclusively to the Season 11 Battle Pass. Once the season ends, she becomes unobtainable.
Base Arbiter is decent thanks to Voidbringer’s Bleed application, but she’s not meta-level. Evolving her to Arbiter (Of the Void) is essential for competitive use.
It’s Arbiter (Of the Void)’s active ability that unlocks after reaching 20 Wilted stacks. Activating it delivers a powerful burst β time it for boss waves or high-HP enemies.
Based on her passive, each follow-up in her range generates 1 Wilted stack. The +5% damage bonus applies per stack with no confirmed hard cap beyond the 20-stack activation threshold.