How can you create a combo with Charnelhoard Wurm, Second Chance?
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[START OF COMBO]This combo can be formed with Charnelhoard Wurm, Second Chance

Color identity: UBRG
Mana cost: {2}{U} each turn
Steps:
  1. At the beginning of your upkeep, Second Chance triggers, causing you to sacrifice it and take an extra turn after this one.
  2. Deal combat damage to an opponent using Charnelhoard Wurm.
  3. Charnelhoard Wurm triggers, returning Second Chance to your hand from your graveyard.
  4. Cast Second Chance by paying {2}{U}.
  5. Repeat each turn.[END OF COMBO STEPS]

Result:
  - Infinite turns[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Charnelhoard Wurm does not have summoning sickness and cannot be blocked by an opponent.
  - Your life total is five or less.
[END OF COMBO PREREQUISITES]
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