How can you create a combo with Reflections of Littjara, Pitiless Plunderer, Gutterbones, Phyrexian Altar?
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[START OF COMBO]This combo can be formed with Reflections of Littjara, Pitiless Plunderer, Gutterbones, Phyrexian Altar

Color identity: UB
Mana cost: {B}
Steps:
  1. Cast Gutterbones by paying {B}.
  2. Reflections of Littjara triggers, creating a token copy of Gutterbones.
  3. Activate Phyrexian Altar by sacrificing Gutterbones and the Gutterbones token, adding {2}.
  4. The Gutterboness die, triggering Pitiless Plunderer twice, creating two Treasure tokens.
  5. Activate both Treasure tokens by tapping and sacrificing them, adding {B}{B}.
  6. Activate Gutterbones by paying {1}{B}, returning it from your graveyard to your hand.
  7. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite colorless mana
  - Infinite creature tokens
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers
  - Infinite storm count
  - Infinite colored mana[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Reflections of Littjara must be on the battlefield
  - Pitiless Plunderer must be on the battlefield
  - Gutterbones must be in your hand
  - Phyrexian Altar must be on the battlefield
  - "Skeleton" or "Warrior" chosen with Reflections of Littjara.
  - An opponent has lost life this turn.
[END OF COMBO PREREQUISITES]
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