How it works
Prerequisites
- You have at least one land card in hand.
Steps
- 1Cast Circle of the Land Druid from your graveyard for its retrace cost by paying and discarding a land card.
- 2When Circle of the Land Druid enters the battlefield, its first ability triggers, allowing you to mill four cards.
- 3Activate Phyrexian Altar by sacrificing Circle of the Land Druid, adding .
- 4When Circle of the Land Druid dies, its second ability triggers, returning a land card from your graveyard to your hand.
- 5Repeat.
Commander brackets
In which brackets is this combo allowed, per Spellbook's Exhibition tier?