How can you create a combo with Luminous Broodmoth, Dross Harvester, Downdraft, Phyrexian Altar?
user
[START OF COMBO]This combo can be formed with Luminous Broodmoth, Dross Harvester, Downdraft, Phyrexian Altar

Color identity: WBG
Mana cost: {G}
Steps:
  1. Activate Downdraft by paying {G}, causing Luminous Broodmoth to lose flying until end of turn.
  2. Activate Phyrexian Altar by sacrificing Luminous Broodmoth, adding {G}.
  3. Dross Harvester triggers, causing you to gain two life.
  4. Luminous Broodmoth triggers, returning itself from your graveyard to the battlefield with a flying counter on it.
  5. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite lifegain
  - Infinite lifegain triggers
  - 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