Night of Mayhem

Put +1/+1 counters on each cultist you don't
control, equal to the number of cultists on the
battlefield. Goad those creatures, until the
beginning of your next turn Cultists cannot
attack you or creatures you control. At the
beginning of your next upkeep exile all cultist
you don't control.
The seeds of mayhem and confusion often bloom
into a garden of nightmares.