Nontoken creatures you control have regrowth 1 (Those creatures enters the battlefield with one +1/+1 counters on them. At the beginning of your upkeep, if those creatures have less then one +1/+1 counters on them, put a number of +1/+1 counters on it equal to the difference.)

{B}, Remove a +1/+1 counter from a creature you control: Create a 1/1 black green Human creature token.