Okay, so I have started to draw these and I am wondering if I should them as adoptables.
I wanted to make different types of cells including white blood cells. For those of you who have not taken Immunology of dome kind - there are numerous types of white blood cells and they look very different and develop differently.
Instead of an egg I would have a hematopoietic stem cell - precursor of blood cells in the body. Each cell would have stages just like a regular adoptable, for example thrombocytes (platelets) would be shown starting off as a giant cell and splitting into pieces (just as they do in real life).
I was also interesting in making some parasites as well as other micro-organisms. Bacteria, for one, and maybe some other pathogenic agents. What do you think?

Yersinia pestis (black death)

Monocyte (becomes macrophages, which are 'eat' bacteria)