Black Beacon

Arc of Astrum Weapon Guide

Arc of Astrum Overview

Arc of Astrum
Rarity	★★★☆☆
Sync Skill	Dark Damage Boost
Base ATK	67
Base DEF	24

Exclusive Weapon for Ereshan

Ereshan	Rarity
	Rating (Gen.)
	Element	Dark
	Class	DPS
	Type	Burst, Charge

Arc of Astrum Synchronization Level and Effects

Arc of Astrum Sync Level and Effects

Name
Dark Damage Boost
Effects
Lv.1 Effect: Enhances dark damage by 2.16%. Lv.2 Effect: Enhances dark damage by 2.88%.

How to Get Arc of Astrum

Roll for Arc of Astrum in Any Retrieval Banner in the Game

Retrieval Banners
Mortal Wanderings	Divine Forge
Holy Oath Blossoms

Arc of Astrum is available in any retrieval banner in the game. You can get Arc of Astrum by rolling in any retrieval banner listed above.

Arc of Astrum Comes With Equipped with Pulled Character

Arc of Astrum is exclusively equipped to Ereshan. If you are able to secure and add Ereshan to your team, you can get Arc of Astrum.

Arc of Astrum Base and Max Stats

Arc of Astrum Stats Table

Lv.1 ＆ Lv. 20

Lv. 40 ＆ Lv. 50

Lv. 60 ＆ Lv. 70

Lv. 80 ＆ Lv. 90

Lv.1 Stat	Base Value
ATK	67
DEF	24

Lv.20 Stat	Base Value
ATK	200
DEF	45

Lv.40 Stat	Base Value
ATK	400
DEF	78

Lv.50 Stat	Base Value
ATK	TBD
DEF	TBD

Lv.60 Stat	Base Value
ATK	623
DEF	114

Lv.70 Stat	Base Value
ATK	783
DEF	140

Lv.80 Stat	Base Value
ATK	TBD
DEF	TBD

Lv.90 Stat	Base Value
ATK	TBD
DEF	TBD

Arc of Astrum Leveling Materials

Arc of Astrum List of Materials Per Breakthrough

Level	Materials
20 → 40	Casting - Ashes x3 Orelium x3000
40 → 60	Casting - Ashes x12 Orelium x12000
60 → 70	Orelium x27000 Casting - Gravel x9

Arc of Astrum Weapon Profile

Arc of Astrum Description

Description
A practical battle sickle, shaped like a sharp crescent moon, it had been given to Ereshan by Nanna. As the successor of the current Head Librarian, he must not only study hard, but also be able to protect the other people of Eme-an. Grandfather Cosmos rarely took action, but throughout his long life, no Anomaly had ever been able to hurt him. Young Ere swung the sickle under Nanna's guidance without any hesitation. - Enheduanna, I must become an outstanding person of Eme-an who is not inferior to my grandfather!

Description

A practical battle sickle, shaped like a sharp crescent moon, it had been given to Ereshan by Nanna.
As the successor of the current Head Librarian, he must not only study hard, but also be able to protect the other people of Eme-an.
Grandfather Cosmos rarely took action, but throughout his long life, no Anomaly had ever been able to hurt him.
Young Ere swung the sickle under Nanna's guidance without any hesitation.
- Enheduanna, I must become an outstanding person of Eme-an who is not inferior to my grandfather!

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All 5-Star Weapons

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Arc of Broken Moon	Oracle Stained Glass Claymore	Purple Iris
Lumina	Bieyunshui	“Collection Not for Sale”
Urania	Glimpse in the Box	Fertile Crescent
Hitchhiker's Guide	Suitcase of Gathering	YuChang
All-purpose Case	Zhupi

All 4-Star Weapons

Engraved Rock - Enhanced	Travel Companion - Enhanced	Defend - Enhanced
Arc of Astrum - Enhanced	Japh-style Sword - Enhanced	Shadow of Florentine - Enhanced
Rosewood Glow - Enhanced	Phoenix Flare - Enhanced	“Do Not Touch” - Enhanced
Erato - Enhanced	Bond of Travel - Enhanced	Moon Sand - Enhanced
Draft - Enhanced	Long Journey - Enhanced	Cun Duan - Enhanced
Tang Mechanical Techniques Mk.II - Enhanced	Indigo Shadow - Enhanced

All 3-Star Weapons

Engraved Rock	Travel Companion	Defend
Arc of Astrum	Japheth-style Sword	Shadow of Florentine
Rosewood Glow	Phoenix Flare	“Do Not Touch”
Erato	Bond of Travel	Moon Sand
Draft	Long Journey	Cun Duan
Tang Mechanical Techniques Mk.II	Indigo Shadow

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Arc of Astrum Weapon Guide