When Soul-Guid Lantern enters the battlefield, exile target card from a graveyard.
T, Sacrifice Soul-Guid Lantern: Exile each opponent's graveyard.
1, T, Soul-Guid Lantern: Draw a card.
Although 1 mana more expensive, this has a lot of advantages over Tormod's Crypt. It does something right away and also doesn't target the opponent to exile the whole graveyard (oh, and can cycle if needed). I really like it.