Cast Traveling Plague by paying 3, attaching it to another creature you control.
When Traveling Plague enters, Gremlin Tamer triggers, creating a creature token.
Activate Goblin Bombardment by sacrificing the creature Traveling Plague is attached to.
When the creature dies, Traveling Plague triggers, returning itself from your graveyard to the battlefield attached to the token created in step 2.
When Traveling Plague enters, Gremlin Tamer triggers, creating a creature token.
Resolve the Goblin Bombardment ability.
Repeat from step 3.
This clever loop uses Traveling Plague as a self-recycling engine, capitalizing on its built-in return trigger whenever its enchanted host leaves the battlefield. By sacrificing that creature to Goblin Bombardment, you send the Aura to the graveyard only to immediately drag it back to the battlefield, attaching it to a brand-new target. Meanwhile, Gremlin Tamer watches this enchantment enter over and over again via its eerie ability, churning out a fresh supply of 1/1 red Gremlin creature tokens to fuel the sacrifice outlet indefinitely.