Moziel
Some ways he strengthens himself physically and mentally, the super soldier serum, the serum made from the heart-shaped herb, extremis, and the serum that grants powers to more than one mutant based on Wolverine, this appeared in the origin movie, these they are the best scientific forms, together with the serum of integration between species, the serum of the lizard, if the dna is replaced by Thor's the effect must be fantastic, other means would be with the use of magic.
you rely far to much on canon to fill in the world. what is going on and how will he deal with it dont seem to matter it just goes straight to the training montage. im just now watching the new mutants(how did i miss this one) but from what i can see so far it looks like a cheap offshoot to just make another movie, meaning it does not fit in the larger world of marvel. kind of like death pool ofc that movie rocked but fitting it into the larger world of marvel will be hard. at least that one kind of fits, unlike new mutants