How can you create a combo with Reflections of Littjara, Pitiless Plunderer, Sanitarium Skeleton, Ashnod's Altar?
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[START OF COMBO]This combo can be formed with Reflections of Littjara, Pitiless Plunderer, Sanitarium Skeleton, Ashnod's Altar

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

Result:
  - 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:
  - Reflections of Littjara must be on the battlefield
  - Pitiless Plunderer must be on the battlefield
  - Sanitarium Skeleton must be in your hand
  - Ashnod's Altar must be on the battlefield
  - "Skeleton" chosen with Reflections of Littjara.
[END OF COMBO PREREQUISITES]
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