Parasitic Germ

Tribal advantage {1}{g}{u} (You may cast this card for {1}{g}{u}. If you do, when this creature enters the battlefield, put a +1/+1 counter on each creature you control that shares a creature type with it.)
{g}{u}, {t}, Remove a +1/+1 counter from Parasitic Germ: Create a token that's a copy of Parasitic Germ.
{g}{u}, Exile three Germs you control: You
gain control of target creature.