How can you create a combo with Lumra, Bellow of the Woods, Port of Karfell, Archelos, Lagoon Mystic, Need for Speed?
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[START OF COMBO]This combo can be formed with Lumra, Bellow of the Woods, Port of Karfell, Archelos, Lagoon Mystic, Need for Speed

Color identity: UBRG
Mana cost: 
Steps:
  1. Activate any number of other lands you control by tapping them, adding at least {3}{U}{B}{B}.
  2. Activate Need for Speed by sacrificing a land other than Port of Karfell.
  3. Repeat step 2 until you control no other lands except Port of Karfell.
  4. Activate Port of Karfell's second ability by paying {3}{U}{B}{B}, tapping and sacrificing it, causing you to mill four cards and return Lumra from your graveyard to the battlefield tapped.
  5. Lumra enters the battlefield and dies as a state-based action due to having 0 toughness.
  6. Lumra's enter-the-battlefield ability triggers, causing you to mill four cards and return all land cards from your graveyard to the battlefield untapped due to Archelos.
  7. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite landfall triggers
  - Infinite leaves the battlefield
  - Infinite mana lands you control can produce
  - Infinite sacrifice triggers
  - Infinite self-mill
  - Put all land cards from your library and graveyard onto the battlefield[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Lumra, Bellow of the Woods must be in the graveyard
  - Port of Karfell must be on the battlefield
  - Archelos, Lagoon Mystic must be on the battlefield
  - Need for Speed must be on the battlefield
  - Lands you control excluding Port of Karfell can tap to produce at least {3}{U}{B}{B}.
  - Archelos is untapped.
[END OF COMBO PREREQUISITES]
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