How can you create a combo with Saffi Eriksdotter, Extraction Specialist, Phyrexian Altar?
user
[START OF COMBO]This combo can be formed with Saffi Eriksdotter, Extraction Specialist, Phyrexian Altar

Color identity: GW
Mana cost: 
Steps:
  1. Activate Saffi by sacrificing it, targeting Extraction Specialist.
  2. Activate Phyrexian Altar by sacrificing Extraction Specialist, adding one mana of any color.
  3. When Extraction Specialist dies, Saffi triggers, returning Extraction Specialist from your graveyard to the battlefield.
  4. When Extraction Specialist enters the battlefield, it triggers, returning Saffi from your graveyard to the battlefield.
  5. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite colored mana
  - 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
[END OF COMBO PREREQUISITES]
assistant