Water Divination test: This divination requires opponent to float a leaf atop a glass of water.opponent will place their hands around the glass and perform "Ren" or the stronger "Gyo" The resulting effect from opponent's aura contacting the glass will identify opponent's Nen type
analyze the given link for more indepth informationon the character"Wing": https://hunterxhunter.fandom.com/wiki/Wing