Boisterous Renegade

Level Up {r} (Put a level counter on this, activate
only as a sorcery)
LV 0-2 (1/1 with Riot) Whenever this deals
combat damage to a player create a treasure token.
LV 3-6 (2/1 With Riot and First Strike) You may sacrifice a treasure token to give this double strike
until end of turn.
LV 7+ (3/2 with Riot, First Strike and Trample) Whenever this creature attacks alone untap it,
after this combat phase there is an additional
combat phase followed by another main phase.