Dobby

When Dobby the House Elf is placed on the battlefield, take one
creature from the opponent
under your control, without tapping manna.
When Dobby the house Elf dies, place one
creature from your graveyard onto the battlefield without tapping manna.
Dobby has no master, Dobby is a free Elf! And
Dobby has come to save Harry Potter, and his
friends!