Vault 12: The Necropolis (PIP) (51)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — Each player gets three rad counters. II — Create X 2/2 black Zombie Mutant creature tokens, where X is the total number of rad counters among players. III — Put two +1/+1 counters on each creature you control that's a Zombie or Mutant.