How can you create a combo with Yarus, Roar of the Old Gods, Obscuring Aether, Earthcraft, Phyrexian Altar?
user
[START OF COMBO]This combo can be formed with Yarus, Roar of the Old Gods, Obscuring Aether, Earthcraft, Phyrexian Altar

Color identity: RG
Mana cost: {G}
Steps:
  1. Activate a basic land by tapping it, adding {1}.
  2. Activate Obscuring Aether by paying {1}{G}, turning it face-down as a 2/2 creature.
  3. Activate Earthcraft by tapping Obscuring Aether, untapping the basic land.
  4. Activate Phyrexian Altar by sacrificing Obscuring Aether, adding {G}.
  5. When Obscuring Aether dies, Yarus' second ability triggers, returning it from your graveyard to the battlefield face-down, then turning it face-up.
  6. 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
  - You control at least one basic land.
[END OF COMBO PREREQUISITES]
assistant