Crop Sigil and Lion's Eye Diamond in your graveyard.
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.
({G} magic symbol) available.
Steps
Cast Crop Sigil from your graveyard for its retrace cost by paying ({G} magic symbol) and discarding Dryad Arbor.
Cast Lion's Eye Diamond from your graveyard for its retrace cost by discarding another land in your hand.
When Lion's Eye Diamond enters the battlefield, Mirrorworks triggers.
Holding priority, activate Lion's Eye Diamond by sacrificing it and discarding your hand, adding three mana of any color.
Resolve the Mirrorworks trigger, causing you to pay ({2} magic symbol) to create a token copy of Lion's Eye Diamond.
Activate the Lion's Eye Diamond token by sacrificing it and discarding your hand, adding ({G} magic symbol) ({G} magic symbol) ({G} magic symbol) .
Activate Crop Sigil by paying ({2} magic symbol) ({G} magic symbol) and sacrificing it, returning Dryad Arbor and another land card from your graveyard to your hand.