Rhet-Crop Deathwielder

When Rhet-Crop Deathwielder enters the battlefield, put two -1/-1 counters on it.
Remove a -1/-1 counter from Rhet-Crop Deathwielder: Target creature in your graveyard gains "Worthy {b}{b} -- Put a -1/-1 counter on target creature."
"Drink, friend. This will give you strength at the expense of life. But who needs that?"