It really depends on what kind of wizard you are, but there are dozens of death pets available to every wizard. Farming, hatching, and more can help you find the perfect death pet!
there is thousands
you cant
No, they can't.
you can't
no.
See my answer in How do you get to other worlds in wizard 101? See my answer in How do you get to other worlds in wizard 101?
There aren't any stray pets.
There is none.
48 after you get scarecrow.
25 spells for death
In NightSide
there are eight classes in wizard 101: Fire, Ice, Life, Myth, Storm, Balance, Death, and Astral.