Where can I find a stormbird heart?

There is a rare resource called Stormbird Heart. Only <b>Stormbirds</b> has this machine resource.

Question

There is a rare resource called Stormbird Heart. Only Stormbirds has this machine resource.

Hagrid P Hazard · Accepted Answer

There is a rare resource called Stormbird Heart. Only Stormbirds has this machine resource.