Teysa cEDH (EDH / Commander)

Ways to go infinite:
(Each of these requires a free sacrifice outlet in addition to the combo pieces. At least one piece from every combo - usually Reassembling Skeleton or Nether Traitor - can start in the graveyard.)

REASSEMBLING ALTAR LINES:

• (Pitiless Plunderer or Phyrexian Altar) + (Reassembling Skeleton or Nether Traitor) + Any token generator
• (Bog Initiate or Initiates of the Ebon Hand) + (Pawn of Ulamog or Sifter of Skulls) + Nether Traitor
• (Bog Initiate or Initiates of the Ebon Hand) + Pawn of Ulamog + Sifter of Skulls + Reassembling Skeleton
• (Bog Initiate or Initiates of the Ebon Hand) + Ashnod's Altar + Nether Traitor + Any token generator
• (Bog Initiate or Initiates of the Ebon Hand) + Ashnod's Altar + Reassembling Skeleton

ZOMBIE ALTAR LINES:

• Gravecrawler + Any zombie + (Phyrexian Altar or Pitiless Plunderer)
• Gravecrawler + Any zombie + (Bog Initiate or Initiates of the Ebon Hand) + (Ashnod's Altar or Pawn of Ulamog or Sifter of Skulls)
• Zombies in the deck in mana value order: Carrion Feeder, Rotten Reunion, Butcher Ghoul, Undead Augur, Apprentice Necromancer

UNDYING YAWGMOTH LINES:

• Yawgmoth, Thran Physician + Butcher Ghoul + Any Token generator

DARKEST HOUR LINE:

• Teysa, Orzhov Scion + (Darkest Hour or Painter's Servant)

Noteworthy cards to search for with Mausoleum Secrets depending on the number cards in your graveyard:

• 0: Slaughter Pact
• 1: Viscera Seer, Carrion Feeder, Darkest Hour, Nested Shambler, Shambling Ghast, Dark Ritual for the next turn
• 2: Bog Initiate, Imp's Mischief, Zulaport Cutthroat, Cruel Celebrant, Plumb the Forbidden, Nether Traitor, Reassembling Skeleton, Fracture, Withering Boon, Unmarked Grave (to send Dread Return to graveyard)
• 3: Pawn of Ulamog, Teysa, Orzhov Scion, Dark Prophecy, Grim Haruspex, Midnight Reaper
• 4: Dread Return, Elenda, the Dusk Rose, Pitiless Plunderer, Snuff Out, Erebos, Bleak-Hearted
  or
• 0: Emergency creature removal
• 1: Sac outlet, sac fodder, temporary ramp or Darkest Hour
• 2: Negation, Removal, Combo piece or an Aristocrat
• 3: Combo piece or Draw
• 4: Combo piece

Cards to search for with Unmarked Grave:

• Nether Traitor or Reassembling Skeleton for a combo piece / recurring sac fodder
• Dread Return to return something else from graveyard by sacrificing three creatures
• Pitiless Plunderer to resurrect with Vespelark or Dread Return
• Woe Strider when in dire need of a sac outlet
• Karmic Guide if Reveillark is on the board or Reveillark if Karmic Guide is in your hand
• Missing combo piece to resurrect with Vespelark, Reveillark or Dread Return

Cards to search for with Ranger-Captain of Eos depending:

• Draw: Esper Sentinel
• Sac Outlet: Viscera Seer or Carrion Feeder
• Combo piece: Initiates of the Ebon Hand or Gravecrawler