How can you create a combo with Basking Rootwalla, Blazing Rootwalla, Tortured Existence, Phyrexian Altar?
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[START OF COMBO]This combo can be formed with Basking Rootwalla, Blazing Rootwalla, Tortured Existence, Phyrexian Altar

Color identity: BRG
Mana cost: {B}
Steps:
  1. Activate Tortured Existence by paying {B} and discarding Basking Rootwalla into exile, targeting Blazing Rootwalla.
  2. Basking Rootwalla's madness ability triggers, causing you to pay {0} to cast it from exile.
  3. Resolve the Tortured Existence ability, returning Blazing Rootwalla from your graveyard to your hand.
  4. Activate Phyrexian Altar by sacrificing Basking Rootwalla, adding {B}.
  5. Activate Tortured Existence by paying {B} and discarding Blazing Rootwalla into exile, targeting Basking Rootwalla.
  6. Blazing Rootwalla's madness ability triggers, causing you to pay {0} to cast it from exile.
  7. Resolve the Tortured Existence ability, returning Basking Rootwalla from your graveyard to your hand.
  8. Activate Phyrexian Altar by sacrificing Blazing Rootwalla, adding {B}.
  9. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers
  - Infinite self-discard triggers
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Basking Rootwalla must be in your hand
  - Blazing Rootwalla must be in the graveyard
  - Tortured Existence must be on the battlefield
  - Phyrexian Altar must be on the battlefield
[END OF COMBO PREREQUISITES]
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