Ochre Jelly

Shroud, deathtouch
{b}{b}{g}{g}, {t}: Create a tapped creature token
that's a copy of Ochre Jelly.
When Ochre Jelly dies, create two 2/2 black and green ooze creature tokens with deathtouch and "{b}{g}, {t}: Sacrifice this creature and another ooze creature you control and return Ochre Jelly to the battlefield tapped."