Aerial Insurgent

Dethrone (Whenever this creature attacks the
player with the most life or tied for most life, put a
+1/+1 counter on it.)
Pay life equal to Aerial Insurgent's power: Aerial Insurgent gains flying until end of turn.
Whenever a blocking creature dealt damage by
Aerial Insurgent this turn dies, if Aerial
Insurgent has three or more counters on it, you
become the monarch.