Doomsday, Gush, Gitaxian Probe, Lion's Eye Diamond, Yawgmoth's Will, and Laboratory Maniac Combo

Prerequisites

Cast Doomsday by paying , searching your library and graveyard for Gush, Gitaxian Probe, Lion's Eye Diamond, Yawgmoth's Will and Laboratory Maniac, then exiling the rest of your library and graveyard, putting the aforementioned cards on top of your library in that order, and causing you to lose half your life total, rounded up
Draw Gush from the top of your library
Cast Gush by returning two Islands you control from the battlefield to your hand, causing you to draw Gitaxian Probe and Lion's Eye Diamond
Cast Lion's Eye Diamond by paying
Cast Gitaxian Probe by paying
Holding priority, activate Lion's Eye Diamond by sacrificing it and discarding your hand, adding
Resolve Gitaxian Probe, causing you to look at a player's hand and draw Yawgmoth's Will
Cast Yawgmoth's Will by paying , allowing you to cast spells from your graveyard this turn
Cast Lion's Eye Diamond from your graveyard by paying
Activate Lion's Eye Diamond by sacrificing it and discarding your hand, adding
Lion's Eye Diamond is exiled instead of being put into your graveyard due to Yawgmoth's Will
Cast Gitaxian Probe from your graveyard by paying , causing you to look at a player's hand and draw Laboratory Maniac
Gitaxian Probe is exiled instead of being put into your graveyard due to Yawgmoth's Will
Cast Laboratory Maniac by paying
Cast Gush from your graveyard by returning two Islands you control from the battlefield to your hand, causing you to draw two cards and win the game due to drawing from an empty library