Gem of Caster
ListEntry
Table of Contents
"Skill Up Material"
A bright stone glimmering with the power of a Caster.
Best Drop Locations
Best Drop Locations
APD = Avg AP Per Drop
The most efficient quests to farm for the item. Lower is better.
Drop rate estimates based on data collected by /u/Rathus and the Grand Order Subreddit
1st Skill Enhancement
2nd Skill Enhancement
1st Append Skill Enhancement
2nd Append Skill Enhancement
4th Append Skill Enhancement
| Servant | Amount |
|---|---|
 Asclepius | x8 |
275
Posts
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Entries
Contributors
Servant Tier ListGUDAGUDA Super Goryoukaku - Walkthrough
Servants
Summon Banner ListGUDAGUDA Super Goryoukaku - Quick Farming Guide
Summon Simulator (JP)
Summon Simulator (NA)Event Guides
Uesugi KenshinGUDAGUDA Super Goryoukaku - Challenge Guide- Lostbelt 7: Nahui Mictlan - Spoiler-free WalkthroughDecisive Battle! Second Battle of OkehazamaOrdeal Call I: Paper Moon - Spoiler-free WalkthroughFull Speed Ahead! Kawanakajima 24 Hours GUDAGUDA Super Goryoukaku: Deadlier Than M51
First Hassan
Demon King Nobunaga (Oda Nobunaga)Christmas 2025 - Walkthrough
Saika MagoichiTraveling Magifender Girl's Special Hero Show!Rabbit’s Reviews #436: Solomon (5* Pretender) - Ordeal Call Bleached Earth - Free Quests
Oberon
Altria Caster
Koyanskaya of LightChristmas 2025 Event - Merry Christmas in the Snowy Field 2025 - 7 Days/8 Years Snow Carol
U-Olga MarieRabbit's Reviews - Archive
Aesc the Savior
Altria Caster (Berserker)GUDAGUDA Bar-Hopping 
Morgan
Nemo (Santa)
Solomon
Mystic CodesLostbelt 7: Nahui Mictlan - Main Quests
Evil Bone
Lilith
Space Ereshkigal
Takeda Shingen (Takeda Harunobu)
Minamoto-no-Raikou / Ushi Gozen- [High Difficulty] Lawless! The Strongest and Invincible Kenshin-chan!
Craft Essences
Mash KyrielightGUDAGUDA Super Goryoukaku - Extra Quests
KukulcanGUDAGUDA Super Goryoukaku - Free Quests
Minamoto-no-Raikou
Scathach-Skadi (Ruler)From Rome, to Thermae, with Love
Larva / Tiamat
