Ninja Shuriken

throwing star

A full wiki page for this entity is still being generated. Until then, see the recorded facts below.

Sources — 3 recorded facts, by chapter

Chapter 26

They deal compounding damage that increases exponentially with each hit on the same target.
They are extremely fragile, breaking after one or two uses, which tempers their value.
Carl's group embedded them into the fortress ramp and bundled them into spike strips, each strip raising damage to the boss by 8% per pass.