Iburi Clan's Kekkei Genkai

This is unique kekkei genkai is possessed by the members of the Iburi clan which allows them to turn their bodies, either partially or fully, into smoke to serve various supplementary purposes. While in their smoke form the user becomes impervious to damage, however if needed, they can still interact with physical objects. Initially, the clan members did not have complete control over the technique, causing them to sometimes transform into smoke without intending to do so. Their ability was partially stabilised, however, through the application of one of Orochimaru's cursed seals on each clan member. While in their smoke form, they are vulnerable to wind, as dispersion while in their smoke form is fatal.