>>42685238
>>42685232
During storming the Cathedral when she met the mad doc and got analyzed.
>There are five stages of Impelled Metamorphosis development in a viable subject. The first three levels are well documented in my research journals, the most significant being incremental changes to the subject’s relationship to and tolerance of radiation.
>Radiation-induced regeneration, even to the point of regrowing limbs, begins at the first stage and radically improves in the second.
>When the subject reaches the third stage of Impelled Metamorphosis development, the subject’s body actually becomes stronger and faster in the presence of radiation, similar to the “glowing ghoul” and a precursor to the “super alicorn” phenomenon. The subject’s healing becomes so advanced that the natural aging process is all but halted.
>...
>First, it has proven virtually impossible to expose a pony to enough I.M.P to bring them to the third stage without crossing the threshold into the fourth. The few examples of successfully stable third-stage subjects have all been in the wild under unrepeatable circumstances. Which is too fucking bad, since stable stage threes have capabilities that give Doc Slaughter’s vaunted “enhancements” a run for their bits.
>that the natural aging process is all but halted
It's highly implied that Pip is third stage, not second.