Myto, the Divider

{x}{u/b}, {t}: Mill X cards, Create a 0/0 green ooze creature token with Graft X, where X is the
number of noncreature cards put into the
graveyard this way.
Whenever an ooze you control dies, create a 0/0
green ooze creature token with Graft X, where X
is half that creature's toughness rounded down.