Rakdos, Lord of Riots + Myr Retriever + Workshop Assistant + Goblin Bombardment

Rakdos, Lord of Riots

Myr Retriever

Workshop Assistant

Goblin Bombardment

How it works

1. Activate Goblin Bombardment by sacrificing Workshop Assistant.
2. When Workshop Assistant dies, it triggers, returning Myr Retriever from your graveyard to your hand.
3. Resolve the Goblin Bombardment ability, dealing 1 damage to an opponent.
4. Cast Myr Retriever by paying 0.
5. Activate Goblin Bombardment by sacrificing Myr Retriever.
6. When Myr Retriever dies, it triggers, returning Workshop Assistant from your graveyard to your hand.
7. Resolve the Goblin Bombardment ability, dealing 1 damage to an opponent.
8. Cast Workshop Assistant by paying 0.
9. Repeat.