Murk-Mire Vermin Scout

When Murk-Mire Vermin Scout enters the battlefield, create a 0/1 black rat creature token with "Sacrifice this creature: Return target goblin you control to its owner's hand."
Sacrifice a Rat: Put a -1/-1 counter on target creature you don't control.
"Rats speak to me. They tell me the secrets others would kill to learn."
—Squabblenaut, Goblin Scout