Badgermole Cub (TLA-167) - Avatar: The Last Airbender

When this creature enters, earthbend 1. (Target land you control becomes a 0/0 creature with haste that's still a land. Put a +1/+1 counter on it. When it dies or is exiled, return it to the battlefield tapped.)

Whenever you tap a creature for mana, add an additional G.