The Sibsig Ceremony + Myr Retriever + Junk Diver + Cemetery Prowler

The Sibsig Ceremony

Myr Retriever

Junk Diver

Cemetery Prowler

How it works

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

This clever loop relies on the cost-reduction engine of The Sibsig Ceremony and Cemetery Prowler to drop our artifact creatures for free, while Cemetery Prowler quietly sets the stage by shaving generic mana off our casts. Once everything is discounted to zero, you cast Junk Diver, which The Sibsig Ceremony immediately destroys—triggering its death ability to pull Myr Retriever back to your hand. You then cast Myr Retriever for free, and when The Sibsig Ceremony destroys it in turn, its death trigger reaches into the graveyard to retrieve Junk Diver. Bouncing these two mechanical retrievers back and forth indefinitely lets you flood the board with an endless army of Zombie Druid tokens.