Eryke the Seventh was just perfect for Cultivation, not having the mana core nor any other powers except for the skills and titles, these things although helped him significantly but had no path forward to get more strength.
He also had the least risk when practising it, every other clone has already stabilised their own paths forward, the only one left was him.
Although it might sound cruel, Eryke the Seventh had no hesitation on being the lab rat. Barely able to beat the first guardian but this didn't count as technically having fallen into her trap in this red miasama now.
After all, once succeeded then his strength would definitely sore through the rankings of all the other clones.
He will also be able to escape his current predicament, being surrounded by red miasma and clinging to the last of his sanity wasn't exactly a pleasant scenario.
