How can you create a combo with Preston, the Vanisher, Karmic Guide, Clone?
user
[START OF COMBO]This combo can be formed with Preston, the Vanisher, Karmic Guide, Clone

Color identity: WU
Mana cost: {3}{W}{W}
Steps:
  1. Cast Karmic Guide by paying {3}{W}{W}.
  2. When Karmic Guide enters the battlefield, it triggers, returning Clone to the battlefield from your graveyard.
  3. Choose not to have Clone copy anything as it enters the battlefield.
  4. Clone dies as a state-based action due to having zero toughness.
  5. Preston triggers, creating a copy of Clone that is a 0/1 Illusion.
  6. Choose to have the Clone token enter the battlefield as a copy of Karmic Guide.
  7. When the Clone token enters the battlefield, it triggers, returning the nontoken Clone to the battlefield from your graveyard.
  8. Repeat from step 3.[END OF COMBO STEPS]

Result:
  - Infinite creature tokens
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Preston, the Vanisher must be on the battlefield
  - Karmic Guide must be in your hand
  - Clone must be in the graveyard
[END OF COMBO PREREQUISITES]
assistant