Prerequisites
- Undercity Informer on the battlefield
- Mana Severance in hand
- All other cards in library
- available
Steps
- Cast Mana Severance for , exiling all lands in your library
- Activate Undercity Informer by paying and sacrificing it, milling your library
- Narcomoeba triggers, returning itself to the battlefield
- Cast Cabal Therapy for its flashback cost, sacrificing Nacromoeba
- Bridge from Below and Nether Traitor trigger
- Resolve Nether Traitor's ability, paying to return it from your graveyard to the battlefield
- Resolve Bridge from Below's trigger, making a 2/2 black Zombie token
- Resolve Cabal Therapy
- Cast Hogaak by exiling five cards from your graveyard and tapping the black Zombie token and Nether Traitor
- Cast Dread Return for its flashback cost targeting Thassa's Oracle, sacrificing Hogaak, the black Zombie Token, and Nether Traitor
- Thassa's Oracle enters the battlefield
Results
Required Cards 9
Undercity Informer
Creature — Human Rogue
Narcomoeba
Creature — Illusion
Bridge from Below
Enchantment
Nether Traitor
Creature — Spirit
Hogaak, Arisen Necropolis
Legendary Creature — Avatar
Thassa's Oracle
Creature — Merfolk Wizard