Six + Genesis Chamber + Phyrexian Altar + Circle of the Land Druid

Six

Genesis Chamber

Phyrexian Altar

Circle of the Land Druid

How it works

1. Cast Circle of the Land Druid from your graveyard for its retrace cost by paying 1 and discarding a land card.
2. When Circle of the Land Druid enters the battlefield, its first ability and Genesis Chamber trigger.
3. Resolve the Circle of the Land Druid trigger, allowing you to mill four cards.
4. Resolve the Genesis Chamber trigger, creating a 1/1 Myr artifact creature token.
5. Activate Phyrexian Altar twice by sacrificing Circle of the Land Druid and the Myr, adding 1.
6. When Circle of the Land Druid dies, its second ability triggers, returning a land card from your graveyard to your hand.
7. Repeat.