Penthesilea

Dethrone (Whenever this creature attacks the player with the most life or tied for most life, put a +1/+1 counter on it.)
When Penthesilea enters the battlefield, target opponent becomes the Monarch. Penthesilea
gets +2/+2 and gains trample when attacking
the Monarch.
"Man once stole our treasure and dignity. Now, we Amazon's will steal their lives."