How can you create a combo with Necrogenesis, Void Attendant, Phyrexian Altar, Doubling Season?
user
[START OF COMBO]This combo can be formed with Necrogenesis, Void Attendant, Phyrexian Altar, Doubling Season

Color identity: BG
Mana cost: {2}
Steps:
  1. Activate Necrogenesis by paying {2}, exling a creature card from an opponent's graveyard and creating two 1/1 Saproling creature tokens.
  2. Activate Phyrexian Altar twice by sacrificing the Saprolings, adding {1}{G}.
  3. Activate Void Attendant by paying {1}{G} and putting a card from an opponent's exile into their graveyard, creating two 1/1 Eldrazi Scion creature tokens.
  4. Activate Phyrexian Altar twice by sacrificing the Eldrazi Scions, adding {2}.
  5. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - An opponent has a creature card in their graveyard.
[END OF COMBO PREREQUISITES]
assistant