How can you create a combo with Umbris, Fear Manifest, Ruthless Technomancer, Phyrexian Metamorph?
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[START OF COMBO]This combo can be formed with Umbris, Fear Manifest, Ruthless Technomancer, Phyrexian Metamorph

Color identity: UB
Mana cost: {3}{B}
Steps:
  1. Cast Ruthless Technomancer by paying {3}{B}.
  2. Ruthless Technomancer enters the battlefield, causing you to sacrifice Umbris and create at least seven Treasure tokens.
  3. Activate six Treasure tokens by tapping and sacrificing them, adding {4}{B}{B}.
  4. Activate Ruthless Technomancer by paying {2}{B} and sacrifcing Phyrexian Metamorph, returning Umbris from your graveyard to the battlefield.
  5. Umbris enters the battlefield, causing target opponent to exile cards from the top of your library until they exile a land card.
  6. Activate Ruthless Technomancer by paying {2}{B} and sacrifcing a Treasure token, returning Phyrexian Metamorph from your graveyard to the battlefield as a copy of Ruthless Technomancer.
  7. Phyrexian Metamorph enters the battlefield, causing you to sacrifice Umbris and create at least seven Treasure tokens.
  8. Repeat from step 3.[END OF COMBO STEPS]

Result:
  - Exile each opponent's library
  - Infinite colored mana
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers
  - Infinite Treasure tokens[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Umbris, Fear Manifest must be on the battlefield
  - Ruthless Technomancer must be in your hand
  - Phyrexian Metamorph must be on the battlefield
  - Opponents have at least six cards in exile.
[END OF COMBO PREREQUISITES]
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