One month after Gon is seriously injured (and banned to directly practice Nen or be part of any match), the 2-year-anniversary match of the Nen-user Kastro against the magician Hisoka is about to start in Heavens Arena. Kastro shows confidence, remembering an old saying, "not to fight if you do not have a chance of winning." (Source: Wikipedia) Heavens Arena arc: (5/10)

Aired on: 5/12/2012