How can you create a combo with Phantom Steed, Time Stretch, Greenwarden of Murasa?
user
[START OF COMBO]This combo can be formed with Phantom Steed, Time Stretch, Greenwarden of Murasa

Color identity: GU
Mana cost: {8}{U}{U}
Steps:
  1. Cast Time Stretch, taking an extra two turns after this one.
  2. Attack with Phantom Steed.
  3. Phantom Steed triggers, creating a token copy of Greenwarden of Murasa that is tapped and attacking.
  4. Greenwarden of Murasa enters, returning Time Stretch from your graveyard to your hand.
  5. Pass the turn.
  6. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - Phantom Steed must be on the battlefield
  - Time Stretch must be in your hand
  - Greenwarden of Murasa must be exiled
  - An opponent can not block Phantom Steed.
[END OF COMBO PREREQUISITES]
assistant