Genesis Chamber + Cursed Mirror + Daretti, Rocketeer Engineer

Genesis Chamber

Cursed Mirror

Daretti, Rocketeer Engineer

How it works

1. Cast Daretti by paying 4 plus commander tax if applicable
2. When Daretti enters the battlefield, it and Genesis Chamber trigger.
3. Resolve the Genesis Chamber trigger, creating a 1/1 Myr artifact creature token.
4. Resolve the Daretti trigger, causing you to sacrifice the Myr to return Cursed Mirror from your graveyard to the battlefield as a copy of Daretti.
5. Put Cursed Mirror into your graveyard due to the legend rule.
6. Cursed Mirror and Genesis Chamber trigger.
7. Resolve the Genesis Chamber trigger, creating a 1/1 Myr artifact creature token.
8. Resolve the Cursed Mirror trigger, causing you to sacrifice the Myr to return Cursed Mirror from your graveyard to the battlefield as a copy of Daretti.
9. Repeat from step 5