Yoh is summoned by Silva, a member of the Patch Tribe and one of the Shaman Fight overseers, who was sent by his superiors to test Yoh's worthiness to participate in the Shaman Fight. Silva overwhelms Yoh by using the Over Soul ability to channel his five animal spirits through the objects on his body, Yoh learning the technique by channeling Amidamaru's soul through his sword. Yoh manages to land a hit on Silva and earns the right to enter the Shaman Fight.