Bertoxxulous, Plaguebringer

Deathtouch
When Bertoxxulous, Plaguebringer is cast
put X -1/-1 counters each other creature.
Bertoxxulous, Plaguebringer's power and toughness are equal to the number of -1/-1 counters on the battlefield.
At the beginning of each upkeep put a -1/-1 counter on each other creature.