How can you create a combo with Emry, Lurker of the Loch, Genesis Chamber, Phyrexian Altar, Phyrexian Metamorph?
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[START OF COMBO]This combo can be formed with Emry, Lurker of the Loch, Genesis Chamber, Phyrexian Altar, Phyrexian Metamorph

Color identity: U
Mana cost: {U}
Steps:
  1. Cast Emry by paying {U} plus commander tax (if applicable).
  2. When Emry enters the battlefield, it triggers itself, Genesis Chamber, and the copy of Genesis Chamber.
  3. Resolve both Genesis Chamber triggers, creating two 1/1 Myr artifact creature tokens.
  4. Resolve Emry's ability, milling four cards.
  5. Activate Phyrexian Altar by sacrificing Emry, adding {U}.
  6. Send Emry from the graveyard to the command zone as a state-based action.
  7. Repeat any number of times.
  8. Once you have infinite creature tokens, you may activate Phyrexian Altar any number of times.[END OF COMBO STEPS]

Result:
  - Infinite colored mana
  - Infinite creature tokens
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers
  - Infinite self-mill
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Emry, Lurker of the Loch must be in the command zone
  - Genesis Chamber must be on the battlefield
  - Phyrexian Altar must be on the battlefield
  - Phyrexian Metamorph must be on the battlefield
  - Phyrexian Metamorph is a copy of Genesis Chamber.
  - Enough additional mana and/or artifacts on the battlefield to make up for Emry's command tax (if applicable).
[END OF COMBO PREREQUISITES]
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