How can you create a combo with Colfenor, the Last Yew, Sifter of Skulls, Endless One?
user
[START OF COMBO]This combo can be formed with Colfenor, the Last Yew, Sifter of Skulls, Endless One

Color identity: WBG
Mana cost: 
Steps:
  1. Cast Endless One by paying {0}.
  2. Endless One enters the battlefield and dies as a state-based action due to having zero or less toughness.
  3. Colfenor and Sifter of Skulls trigger.
  4. Resolve the Colfenor trigger, returning nothing from your graveyard to your hand.
  5. Resolve the Sifter of Skulls trigger, creating a 1/1 Eldrazi Spawn creature token.
  6. Activate the Eldrazi Spawn by sacrificing it, adding {C}.
  7. The Eldrazi Spawn dies, triggering Colfenor, returning Endless One from your graveyard to your hand.
  8. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite +1/+1 counters on Endless One
  - Infinite colorless mana
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Colfenor, the Last Yew must be on the battlefield
  - Sifter of Skulls must be on the battlefield
  - Endless One must be in your hand
[END OF COMBO PREREQUISITES]
assistant