Try finding Tithe Drinker. Cheap 2/1 life link vampire with extort. Costs B+W to cast. Very efficient for the management cost. Even if you never use it in combat, it can still generate life for you. Cast a spell, pay a B or W, all opponents lose 1 life, you gain that much life. IE, 3 player game. Extort for 1. Players 2 and 3 each lose 1 life. You gain 2 life. Might seem janky at first, but it's fun. Type 1.5 creatures to look for for life ramp will include Souls of the Faultless, Agent of Masks, Vampire Nighthawk, Bloodline Keeper and Vampire Nocturnus. Planeswalker should be any of the Sorin cards. If you really feel like an ass, use Sanguine Bond and Exquisite Blood together. Deal 1 damage and that player dies regardless of life total.
Tithe drinker is noted; good call.
So here is what I got. Remember this is built off of what I have (I did buy a few cards) and not what is *possible* with the set... This is kinda crappy but this is the best I can do pulling out of "magic assistant"..
Count,Tradelist Count,Name,Foil,Textless,Promo,Signed,Edition,Condition,Language,Card Number
1,0,Bone Splinters,,,,,Shards of Alara,,English,67
3,0,Ghoulcaller's Chant,,,,,Innistrad,,English,101
1,0,Falkenrath Noble,,,,,Innistrad,,English,100
1,0,Lord of Lineage,,,,,Innistrad,,English,90
2,0,Unburial Rites,,,,,Innistrad,,English,122
2,0,Blood Artist,,,,,Avacyn Restored,,English,86
1,0,Disentomb,,,,,Magic 2013,,English,89
1,0,Chromatic Lantern,,,,,Return to Ravnica,,English,226
2,0,Shadow Alley Denizen,,,,,Gatecrash,,English,76
3,0,Boros Guildgate,,,,,Gatecrash,,English,239
4,0,Bloodbond Vampire,,,,,Battle for Zendikar,,English,104
1,0,Bone Splinters,,,,,Battle for Zendikar,,English,105
1,0,Defiant Bloodlord,,,,,Battle for Zendikar,,English,107
4,0,Drana's Emissary,,,,,Battle for Zendikar,,English,210
1,0,Guul Draz Overseer,,,,,Battle for Zendikar,,English,112
2,0,Kalastria Healer,,,,,Battle for Zendikar,,English,114
2,0,Kalastria Nightwatch,,,,,Battle for Zendikar,,English,115
2,0,March from the Tomb,,,,,Battle for Zendikar,,English,214
1,0,Mortuary Mire,,,,,Battle for Zendikar,,English,240
4,0,Nirkana Assassin,,,,,Battle for Zendikar,,English,118
4,0,Plains,,,,,Battle for Zendikar,,English,251
16,0,Swamp,,,,,Battle for Zendikar,,English,261
1,0,Vampiric Rites,,,,,Battle for Zendikar,,English,124