How can you create a combo with Hecatomb, Cacophodon, Roaming Throne, Nim Deathmantle?
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[START OF COMBO]This combo can be formed with Hecatomb, Cacophodon, Roaming Throne, Nim Deathmantle

Color identity: BG
Mana cost: 
Steps:
  1. Activate Hecatomb by tapping an untapped Swamp you control, dealing 1 damage to Cacophodon.
  2. Cacophodon triggers twice, untapping two tapped swamps you control.
  3. Activate a Swamp you control by tapping it, adding {B}.
  4. Repeat steps 1-3 until Cacophodon has 4 damage marked on it.
  5. Activate Hecatomb by tapping an untapped Swamp you control, dealing 1 damage to Cacophodon.
  6. Nim Deathmantle triggers and Cacophodon triggers twice.
  7. Resolve the Nim Deathmantle trigger, paying {4} to return Cacophodon to the battlefield.
  8. Resolve both Cacophodon triggers, untapping two tapped Swamps you control.
  9. Repeat from step 1.[END OF COMBO STEPS]

Result:
  - Infinite damage
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite mana permanents you control can produce
  - Infinite untaps of permanents you control[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - You control at least two Swamps.
[END OF COMBO PREREQUISITES]
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