Sewer Goblin

At the beginning of your upkeep, create a 1/1 red goblin creature token. Then flip a coin. If you
win, create X 1/1 red goblin creature tokens
where X is the number of goblins you control. If
you lose, sacrifice two creatures.
Goblin creatures you control have "When this creature dies, it deals 3 damage to a random
opponent."