When Mycosynth Wellspring enters the battlefield or is put into a graveyard from the battlefield, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle your library.
The oil created the mycosynth. The mycosynth created New Phyrexia.
Near Mint - $200
Lightly Played - $200
Moderately Played - $200
Heavily Played - $100
Damaged - $100
Near Mint Spanish - $200
Lightly Played Spanish - $200
Moderately Played Spanish - $200
Heavily Played Spanish - $100
Damaged Spanish - $100