How can you create a combo with Mesmeric Orb, Aphetto Alchemist?
user
[START OF COMBO]This combo can be formed with Mesmeric Orb, Aphetto Alchemist

Color identity: U
Mana cost: 
Steps:
  1. Activate Aphetto Alchemist by tapping it, untapping itself.
  2. When Aphetto Alchemist becomes untapped, Mesmeric Orb triggers, causing you to mill a card.
  3. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite self-mill[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Aphetto Alchemist does not have summoning sickness.
[END OF COMBO PREREQUISITES]
assistant