Stuff that win game? Maybe?
Near-Death Experience and Plunge into Darkness. Pay 19 life at the end of your opponent's turn with Near-Death Experience on the battlefield. At the beginning of your upkeep, Near-Death Experience triggers. YOU WIN!
Barren Glory, Oblivion Ring and Kaervek's Spite. Cast Barren Glory, then Oblivion Ring and exile Barren Glory. At the end of your opponent's turn, cast Kaervek's Spite. You sacrifice Oblivion Ring, which brings back Barren Glory. At the beginning of your upkeep, Barren Glory triggers. YOU WIN!
Alchemist's Refuge, Laboratory Maniac and Leveler. Play Alchemist's Refuge and Laboratory Maniac. Pass turn to opponent. At the end of your opponent's turn, activate Alchemist's Refuge's ability, thus giving Leveler flash. Cast Leveler. At the beginning of your upkeep, you would draw a card. But since Leveler removed your library from the game, you don't. Ergo, Laboratory Maniac's ability triggers. YOU WIN!
Ornithopter, Grinding Station and Enduring Renewal. Cast all three. Sacrifice Ornithopter to Grinding Station. Enduring Renewal triggers, returning Ornithopter to your hand. Cast Ornithopter. Repeat the process until the opponent is milled out. YOU WIN!
Cloud of Faeries, Deadeye Navigator and Altar of the Brood. Cast all three. Pair Deadeye Navigator with Cloud of Faeries. Activate Deadeye Navigator blink ability on Cloud of Faeries. When it blinks back in,Altar of the Brood's ability triggers. Untap two lands from Cloud of Faeries' entering ability. Repeat the process until your opponent(s) are milled out. YOU WIN!
Codex Shredder, Tidewater Minion and Illusionist's Bracers. Cast all three. Equip Tidewater Minion with Illusionist's Bracers. Tap Codex Shredder to mill your opponent for one. Tap Tidewater Minion to untap Tidewater Minion and Codex Shredder. Repeat the process until your opponent is milled out. YOU WIN!
Ashnod's Altar, two Xathrid Necromancers and Arcane Adaptation. Cast all four, choosing Human as Arcane Adaptation's creature type. Sacrifice a non-Xathrid Necromancer to Ashnod's Altar. You get two Zombie Human Tokens and two colourless Mana. Sacrifice a Zombie Human Token to Ashnod's Altar. You get two more Zombie Human Tokens and two more colourless Mana. Repeat the process for infinite Zombie Human Tokens and colourless Mana.
Those are the combos included in this deck. Please playtest to see how I spread out the land colours and comment to tell me how I can make the Mana spread better. I was going to include Demonic Tutor, but then I realised it was illegal in legacy, so I included Academy Rector for Xathrid Necromancer sacrifice fodder and tutor for Enduring Renewal, Barren Glory, Oblivion Ring and Near-Death Experience. You can also replace Grinding Station with Ashnod's Altar for also infinite mana.
