Simple question.
"As a standard action, the alchemist can have the tumor detach itself from his body as a separate creature vaguely resembling a kind of animal suitable for a familiar (bat, cat, and so on) and move about as if it were an independent creature."
Does this use the alchemist's standard action or the familiar's?
Also, it says a tiny or diminutive sized tumor, it doesn't expressly state the animal that detatches from the alchemist is the same size as the lump. Thoughts?
Use the alchemists action to detach.
The lump is just a reskinned tiny or diminutive familiar. The tumor doesn't have a size when it is on you and cannot be separately targeted.