Untap, upkeep, Swampcycle Twisted Abomination, play a Swamp, activate Cabal Coffers and tap out for BBBBBBB, play Syphon Soul, play Gutless Ghoul, necro myself down to 10, done.
Oversoul: 10
Hand: 7
Library: 39
In Play:
-(T, T, T, T, T) Swamp x5
-(T) Cabal Coffers (2, T: add B to my mana pool for each of my Swamps)
-Necropotence (significant card advantage for me and not you)
-(S) Gutless Ghoul (2/2; 1, sac a creature: gain 2 life)
Graveyard: Withered Wretch, Vengeful Dead, Living Death, Twisted Abomination, Syphon Soul
RFG: Swamp, Gravedigger
Limited: 14
Hand: 5
Library: 48
In Play:
(T) Island
(TT) 2x Mountain
(T) Shivan Reef
(S) Desert Drake (2/2) [Flying]
Graveyard: Azimaet Drake, Azure Drake
RFG:
Spiderman: 13
Hand: 4
Library: 48
In Play:
(T,T,T) Plains x3
(U) Tundra
(T) Sol Ring (T: add 2 to my mana pool)
(S) Serra Angel (4/4, flying, vigilence)
Graveyard: Radiant, Archangel
RFG:
DarthFerret: 24
Hand: 4
Library: 48
In Play:
(T,U) Plains
(T,U) Swamp
(U) Maze of Ith
Planar Collapse: At the begining of my upkeep, if there are 4 or more creatures in play, sacrifice Planar Collapse. If I do, destroy all creatures. They cannot be regenerated!
Graveyard: Soul Warden, Soltari Visionary
RFG:
Mooseman: 14
Hand: 5
Library: 49
In Play:
(UUU) Swamp
Hissing Miasma (Whenever a creature attacks you, its controller loses 1 life.)
Graveyard: Festering Goblin, Zombie Master, Bone Dancer
RFG: