Risis, Dark-Neon City

At the beginning of your upkeep, put a faction
counter on Risis, Dark-Neon City.
{t}: Add {b}{b} to your mana pool. Roll a d20 for
each faction counter on Risis, Dark-Neon City:
1-13: Create a 2/2 black soldier creature token
with deathtouch.
14-19: Create two treasure tokens.
20: Put a +1/+1 counter of each creature you
control.