The Loadstar appears as a ball of thin, iron spikes floating in mid-air. Immature subjects may be as small as a fist, but those most often encountered are between two and three feet in diameter. Their shape suggests a sea urchin, though they are always found underground. Beneath a hard outer shell of iron lies the bright orange goo that serves as the loadstar’s guts.

Loadstars are mindless but will instinctively moderate their attacks, typically avoiding attacking a victim after it already carries one or more larva.