The Sibsig Ceremony + Animar, Soul of Elements + Myr Retriever + Junk Diver

The Sibsig Ceremony

Animar, Soul of Elements

Myr Retriever

Junk Diver

How it works

1. Cast Junk Diver by paying 0.
2. Animar triggers, putting a +1/+1 counter on it.
3. When Junk Diver enters the battlefield, The Sibsig Ceremony triggers, destroying Junk Diver and creating a 2/2 Zombie Druid creature token.
4. When Junk Diver dies, it triggers, returning Myr Retriever from your graveyard to your hand.
5. Cast Myr Retriever by paying 0.
6. Animar triggers, putting a +1/+1 counter on it.
7. When Myr Retriever enters the battlefield, The Sibsig Ceremony triggers, destroying Myr Retriever and creating a 2/2 Zombie Druid creature token.
8. When Myr Retriever dies, it triggers, returning Junk Diver from your graveyard to your hand.
9. Repeat.