Kostakis, the Rebel

Riot (This creature enters the battlefield with
your choice of a +1/+1 counter or haste.)
Whenever Kostakis attacks, populate.
The token enters the battlefield tapped
and attacking. (To populate, create a token that's
a copy of a creature token you control.)
Creatures can't attack you unless their controller
pays {2} for each creature they control that's attacking you.