Six, Dryad Arbor, Crop Sigil, Lion's Eye Diamond, and Mirrorworks

Prerequisites

• Six on the battlefield
• Dryad Arbor in hand
• Crop Sigil in the graveyard
• Lion's Eye Diamond in the graveyard
• Mirrorworks on the battlefield
• You have at least one additional land card in hand
• There are at least four card types among cards in your graveyard, excluding Crop Sigil
• available

Steps

1. Cast Crop Sigil from your graveyard for its retrace cost by paying and discarding Dryad Arbor
2. Cast Lion's Eye Diamond from your graveyard for its retrace cost by discarding another land in your hand
3. When Lion's Eye Diamond enters the battlefield, Mirrorworks triggers
4. Holding priority, activate Lion's Eye Diamond by sacrificing it and discarding your hand, adding three mana of any color
5. Resolve the Mirrorworks trigger, causing you to pay to create a token copy of Lion's Eye Diamond
6. Activate the Lion's Eye Diamond token by sacrificing it and discarding your hand, adding
7. Activate Crop Sigil by paying and sacrificing it, returning Dryad Arbor and another land card from your graveyard to your hand
8. Repeat

Results

• Infinite storm count
• Infinite self-discard triggers