Grand Summoners items

Yellow Thunder Crystal

Yellow Thunder Crystal is a enhance material in Grand Summoners.

How to get

Glowing Sanctuary, Sanctuary of the Divine Princess, Fortress of the Machine God, Sanctuary of the Bright Spirit

• Amber Crystal
• Azure Water Crystal
• Black Rites Crystal
• Brilliance Spirit Stone
• Brutal Botanical Jewel
• Condensed Electrical Circuit
• Crimson Flame Crystal
• Crimson Glow Crystal
• Crystal of Dedication
• Crystal of Devotion
• Dark Crystal
• Dark Ore