The Young and Dumb Ones

Sacrifice this creature at the end of your next upkeep
When The Young and Dumb Ones dies, create 2 4/4 red goblin creature tokens, they have sacrifice this creature at the beginning of your next upkeep and when this creature dies create 2 2/2 red goblin creature tokens, they have sacrifice this creature at the beginning of your next end step and when this creature dies create 2 1/1 red goblin creature tokens