Low Orbs refers to Fire Orb, Water Orb, Earth Orb, Wind Orb, Light Orb, and Dark Orb. They are much more common than High Orbs.
Despite being a low-tier drop, low orbs are required in high numbers for the Revenant Weapons upgrade process and final uncap of Omega Weapons. They are also used in small numbers to uncap SR and R characters.
|Uncap R to 1★||1|
|Uncap R to 2★||2|
|Uncap R to 3★||3|
|Uncap story SR to 1★||1|
|Uncap SR to 1★||1|
|Upgrade Omega Weapon to 4★||100|
|Change Rusted Weapon element
|Upgrade Revenant Weapons (step 1)||100|
|Upgrade Revenant Weapons (step 2)||150|
|Upgrade Revenant Weapons (step 3)||200|
|Upgrade Revenant Weapons (step 4)||250|
|Purchase Seraphic Weapons (SR uncapped)||5|
|Uncap SR Seraphic Weapons to 1★||10|