Elam Falls:

Violet eye pendant

Post-delivery binding

only

Miscellaneous accessories

Intelligence +40

Level 70 is required.

Use: For every spell cast within 20 seconds, it can give you a superposition effect of restoring 2 1 mana every 5 seconds, and the effect ends after 20 seconds. Skills that do not use mana will not trigger this effect. (2 minutes cooling)

Another suggestion:

Statue-red pointed snake

Post-delivery binding

only

Miscellaneous accessories

Intelligence +33

Endurance +49

Level 70 is required.

Need: Jewelry Processing (375)

Use: Increases spell strength by 150 for 20 seconds. (2 minutes cooling)