Thyra, Experimenter

As Thyra comes into play, put a 4/4 homonculus
token into play under your control.
As Thyra leaves play, sacrifice all tokens in play.
{g}{u}{t}: Put 1 0/3 Marine Sphere token under
your opponent's control. At the end of your
opponent's next turn, it will be destroyed and
deals 3 damage to him/her.
I've failed many times, but that 1 successful
experiment kept me going!
-Thyra, Biochemist-