Reckless Outlaws

Myriad, Menace & Riot (This creature enters with your choice of a +1/+1 counter or haste)
When this enters the battlefield roll a D20, if
you roll a 1 -3 sacrifice a creature, 4-14 all players must, 15-20 only opponents have to.
Whenever this creature deals combat damage
to a player you Take The Initiative.