How can you create a combo with Shilgengar, Sire of Famine, Solemnity, Phyrexian Altar?
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[START OF COMBO]This combo can be formed with Shilgengar, Sire of Famine, Solemnity, Phyrexian Altar

Color identity: WB
Mana cost: 
Steps:
  1. Activate Shilgengar's first ability by sacrificing another nontoken creature, creating at least one Blood artifact token.
  2. Repeat step 1 until you control at least six Blood tokens.
  3. Activate Phyrexian Altar by sacrificing another nontoken creature, adding {W/B}.
  4. Repeat step 3 until you have {W/B}{W/B}{W/B} available.
  5. Activate Shilgengar by paying {W/B}{W/B}{W/B} and sacrificing six Blood tokens, returning all creature cards from your graveyard to the battlefield without a finality counter on them due to Solemnity.
  6. Repeat.
  7. If you control additional nontoken creatures, you may sacrifice them in step 1 to get infinite Blood tokens, and/or in step 3 to get infinite colored mana.[END OF COMBO STEPS]

Result:
  - Infinite Blood tokens
  - Infinite colored mana
  - Infinite death triggers
  - Infinite draw triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite rummaging
  - Infinite sacrifice triggers
  - Infinite self-discard triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - You control at least nine other nontoken creatures. This pre-requisite can be reduced if you control one or more nontoken Angels with toughness 2+, or if you have creature cards in your graveyard plus additional {W/B} mana and/or Blood tokens.
[END OF COMBO PREREQUISITES]
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