How can you create a combo with Athreos, Shroud-Veiled, Skullbriar, the Walking Grave, Ashnod's Altar?
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[START OF COMBO]This combo can be formed with Athreos, Shroud-Veiled, Skullbriar, the Walking Grave, Ashnod's Altar

Color identity: WBG
Mana cost: 
Steps:
  1. Move to your end step.
  2. Athreos triggers, placing a coin counter on Skullbriar.
  3. Sacrifice Skullbriar to Ashnod's Altar to add {C}{C}.
  4. Athreos triggers, returning Skullbriar to the battlefield.
  5. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite colorless 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