There is no need to buy it. Low damage and combo+stealth. Here, the damage has been completely reduced. . And it's useless for 59 butterflies to be invisible (PK perceives a bunch of BB). There is no need to be invisible if there is blood sucking in the mission. . So this butterfly lost its invisibility. . . If you sell it, this book can sell for 20 dollars. See how much you can hack it.