Sixth Rank monster!
In Da Xuan, monsters are classified into ten ranks, with the first to sixth ranks corresponding in power to the realms of Skin Toughening, Body Refinement, Tendon Changing, Bone Tempering, Five Viscera, and Six Viscera martial artists, respectively.
Like those in the Five Viscera Realm, martial artists of the Six Viscera Realm do not have minor sub-divisions, but if one were to categorize them by strength, they could roughly be divided into 'weaker,' 'stronger,' 'very strong,' and 'peak.'
The 'weaker' level barely qualifies as entering the Six Viscera Realm and has not realized the second step of Artistic Conception. In terms of strength, it's about the same as Meng Danyun's level before he stepped into the Six Viscera Realm, having mastered the second step Artistic Conceptions for both Xun Wind and Kan Water.