Pi by Many-Faced-701 on DeviantArt (original) (raw)

Pi is a grey sphere, and brother to Quad. Being true grey, Pi is immune to the corruption, but is also unable to truly show his face without fear. This has left Pi pretty bitter, and being a hidden caretaker doesn't help that. Pi is Steel's caretaker, making him the caretaker of the Purple tree. He fights with saws.