How can you create a combo with Riku of Two Reflections, Biovisionary, Double Major?
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[START OF COMBO]This combo can be formed with Riku of Two Reflections, Biovisionary, Double Major

Color identity: GUR
Mana cost: {1}{G}{G}{G}{U}{U}{U}{U}{R}
Steps:
  1. Cast Biovisionary by paying {1}{G}{U}.
  2. Holding priority, cast Double Major by paying {G}{U}, targeting the Biovisionary spell.
  3. Riku's first ability triggers, causing you to pay {U}{R} to copy Double Major, targeting the Biovisionary spell.
  4. Resolve both Double Majors, copying the Biovisionary spell twice.
  5. Resolve all Biovisionary spells.
  6. The nontoken Biovisionary enters the battlefield, triggering Riku's second ability, causing you to pay {G}{U} to create a token copy of Biovisionary.
  7. At the beginning of your end step, each Biovisionary triggers.
  8. Resolve the first Biovisionary trigger, causing you to win the game.[END OF COMBO STEPS]

Result:
  - Win the game[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Riku of Two Reflections must be on the battlefield
  - Biovisionary must be in your hand
  - Double Major must be in your hand
[END OF COMBO PREREQUISITES]
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