Radiant Power Orb

The Radiant Power Orb is an Orb unlockable at. It can be upgraded into a Mana Flux Power Orb.

Using its ability does not remove or use up the item. When placed, it cannot be picked up; the ability spawns a new orb.

Trivia
For a while since March 28, 2021, players could place Radiant, Manaflux, Overflux, and Plasmaflux Power Orbs on the private island by shift clicking them on a chest and then breaking the chest, allowing the player to place it as a head. This was patched a month later.