How can you create a combo with There and Back Again, Song of the Worldsoul, Seething Anger?
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[START OF COMBO]This combo can be formed with There and Back Again, Song of the Worldsoul, Seething Anger

Color identity: RW
Mana cost: {3}{R}
Steps:
  1. At the beginning of your precombat main phase, There and Back Again triggers, creating a legendary 6/6 Smaug creature token, and causing you to sacrifice There and Back Again.
  2. Cast Seething Anger with buyback by paying {3}{R}, targeting any creature you control.
  3. Song of the Worldsoul triggers, creating a copy of the Smaug token.
  4. Put a Smaug token into your graveyard due to the legend rule.
  5. When the Smaug dies, it triggers, creating fourteen Treasure tokens.
  6. Resolve Seething Anger, giving a creature you control +3/+0 until end of turn and returning Seething Anger to your hand.
  7. Activate four Treasure tokens by tapping and sacrificing them, adding {3}{R}.
  8. Repeat from step 2.
  9. Once you have infinite colored mana, you may use Song of the Worldsoul's trigger to target any other token you control instead.[END OF COMBO STEPS]

Result:
  - Infinite colored mana
  - Infinite copies of tokens you control
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinitely powerful creatures until end of turn
  - Infinite magecraft triggers
  - Infinite storm count
  - Infinite Treasure tokens[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - There and Back Again must be on the battlefield
  - Song of the Worldsoul must be on the battlefield
  - Seething Anger must be in your hand
  - There and Back Again has exactly two lore counters on it.
[END OF COMBO PREREQUISITES]
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