There have been many tries. Many prototypes. Pretty much all of them failed even against commoners. But today, a new buff has finally made this a viable deck. You can finally build a deck around "let your opponent kill themselves with singularities".
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Combo is: Play 1 SN, play Tomb, play Give on Tomb, play second SN, play Lightning (another Give works too) on own Singu, and tada, opponent has a singu. If you think/know he has cc, be sure to use Quint on his new Singu. After the combo is played, you can stall with dials, kill his strongest creatures with lightnings (preferably play a tomb first) and/or save up for another part of the combo again. It will take a while, but eventually your opponent will have several strong AM'd vampire Singus on his field and you win.
This is just a first build with the combo, I am sure there are some mods that makes this better.
Works against Mages, also won a PvP duel with it.