How can you create a combo with Second Chance, Emeria Shepherd, Selesnya Sanctuary?
user
[START OF COMBO]This combo can be formed with Second Chance, Emeria Shepherd, Selesnya Sanctuary

Color identity: GWU
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. Play Selesnya Sanctuary from your hand.
  3. Selesnya Sanctuary enters the battlefield, triggering itself and Emeria Shepherd.
  4. Resolve the Selesnya Sanctuary trigger, returning it from the battlefield to your hand.
  5. Resolve the Emeria Shepherd trigger, returning Second Chance from your graveyard to your hand.
  6. Cast Second Chance by paying {2}{U}.
  7. Repeat each turn.[END OF COMBO STEPS]

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

Other prerequisites:
  - Second Chance must be on the battlefield
  - Emeria Shepherd must be on the battlefield
  - Selesnya Sanctuary must be in your hand
  - Your life total is five or less.
[END OF COMBO PREREQUISITES]
assistant