How can you create a combo with Invasion of Arcavios // Invocation of the Founders, Displacer Kitten, Seething Song, Desperate Ritual?
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[START OF COMBO]This combo can be formed with Invasion of Arcavios // Invocation of the Founders, Displacer Kitten, Seething Song, Desperate Ritual

Color identity: UR
Mana cost: {1}{R}
Steps:
  1. Cast Desperate Ritual by paying {1}{R}.
  2. Displacer Kitten triggers, blinking Invasion of Arcavios.
  3. When Invasion of Arcavios enters the battlefield, it triggers, searching your library and/or graveyard for Seething Song and putting it into your hand.
  4. Resolve Desperate Ritual, adding {R}{R}{R}.
  5. Cast Seething Song by paying {2}{R}.
  6. Displacer Kitten triggers, blinking Invasion of Arcavios.
  7. When Invasion of Arcavios enters the battlefield, it triggers, returning Desperate Ritual from your graveyard to your hand.
  8. Resolve Seething Song, adding {R}{R}{R}{R}{R}.
  9. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite magecraft triggers
  - Infinite red mana
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Invasion of Arcavios // Invocation of the Founders must be on the battlefield
  - Displacer Kitten must be on the battlefield
  - Seething Song must be in your hand or in the graveyard or in the library
  - Desperate Ritual must be in your hand
[END OF COMBO PREREQUISITES]
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