How can you create a combo with Tawnos, Solemn Survivor, Retreat to Coralhelm, Caged Sun, Vault of Whispers?
user
[START OF COMBO]This combo can be formed with Tawnos, Solemn Survivor, Retreat to Coralhelm, Caged Sun, Vault of Whispers

Color identity: WUB
Mana cost: {1}{W}{U}{B}
Steps:
  1. Activate Tawnos' second ability by paying {1}{W}{U}{B}, tapping it, sacrificing two artifact tokens and exiling Vault of Whispers from your graveyard, causing you to create a token of Vault of Whispers.
  2. When the Vault of Whispers token enters the battlefield, Retreat to Coralhelm triggers, untapping Tawnos.
  3. Activate the Vault of Whispers token by tapping it, adding {B}.
  4. Caged Sun triggers, adding {B}.
  5. Activate Tawnos' first ability by paying {2} and tapping it, creating a copy of the Vault of Whispers token and causing you to mill two cards.
  6. Repeat from step 2.[END OF COMBO STEPS]

Result:
  - Infinite landfall triggers
  - Infinite self-mill
  - Infinite tapped Vault of Whispers tokens[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Tawnos, Solemn Survivor must be on the battlefield
  - Retreat to Coralhelm must be on the battlefield
  - Caged Sun must be on the battlefield
  - Vault of Whispers must be in the graveyard
  - Tawnos does not have summoning sickness.
  - "Black" chosen with Caged Sun.
  - You control at least two artifact tokens.
[END OF COMBO PREREQUISITES]
assistant