Swarm of the Horde

When Swarm of the Horde enters the battlefield, you may sacrifice a creature with power 5 or less. If you do, create X 1/1/ red Goblin creature tokens, where X is that creature's power.
{r}, Sacrifice a creature: Create X 1/1/ red Goblin creature tokens, where X is the sacrifice Creature's power.
"We will stop at Nothing! Tear down their walls! No stopping!" -Squee, at The Battle of Fort Scapenside.