How can you create a combo with Ratadrabik of Urborg, Vesuvan Duplimancy, Adrix and Nev, Twincasters, Quasiduplicate?
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[START OF COMBO]This combo can be formed with Ratadrabik of Urborg, Vesuvan Duplimancy, Adrix and Nev, Twincasters, Quasiduplicate

Color identity: GWUB
Mana cost: {1}{U}{U}
Steps:
  1. Cast Quasiduplicate by paying {1}{U}{U}, targeting Adrix and Nev.
  2. Vesuvan Duplimancy triggers, creating two nonlegendary token copies of Adrix and Nev.
  3. Resolve Quasiduplicate, creating eight copies of Adrix and Nev.
  4. Put all but one legendary Adrix and Nev into your graveyard due to the legend rule.
  5. When the Adrix and Nevs die, Ratadrabik triggers eight times.
  6. Resolve the first Ratadrabik trigger, creating a number of nonlegendary token copies of Adrix and Nev equal to 2^(the number of Adrix and Nevs you currently control) that are 2/2 Zombies in addition to their other types.
  7. Repeat step 6 for each remaining trigger.[END OF COMBO STEPS]

Result:
  - Near-infinite creature tokens
  - Near-infinite enters the battlefield[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Ratadrabik of Urborg must be on the battlefield
  - Vesuvan Duplimancy must be on the battlefield
  - Adrix and Nev, Twincasters must be on the battlefield
  - Quasiduplicate must be in your hand
[END OF COMBO PREREQUISITES]
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