Greed Island arc
Michirou tries to exchange a fake Favor Cushion (G.I card) card with Gon, but the fake card is exposed by Gon's Paladin's Necklace. After that he's frightened by Killua and he then gives Gon a genuine Favor Cushion.
Abilities & Powers
Due to being able to access Greed Island, Michirou is capable of utilizing Nen.