How can you create a combo with Astral Dragon, Oblivion Ring?
user
[START OF COMBO]This combo can be formed with Astral Dragon, Oblivion Ring

Color identity: WU
Mana cost: {6}{U}{U}
Steps:
  1. Cast Astral Dragon by paying {6}{U}{U}.
  2. Astral Dragon enters the battlefield, creating two token copies of Oblivion Ring that are 3/3 Dragons in addition to their other types.
  3. The Oblivion Ring tokens enter the battlefield, triggering their first abilities.
  4. Resolve the first Oblivion Ring token's trigger, exiling Astral Dragon.
  5. Resolve the second Oblivion Ring token's trigger, exiling the first Oblivion Ring token.The first Oblivion Ring token leaves the battlefield, returning Astral Dragon from exile to the battlefield.
  6. Repeat from step 2.[END OF COMBO STEPS]

Result:
  - Infinite copies of noncreature permanents you control
  - Infinite creature tokens
  - Infinite enters the battlefield
  - Infinite leaves the battlefield[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Astral Dragon must be in your hand
  - Oblivion Ring must be on the battlefield
[END OF COMBO PREREQUISITES]
assistant