How can you create a combo with Mayael's Aria, Body of Research?
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[START OF COMBO]This combo can be formed with Mayael's Aria, Body of Research

Color identity: RGWU
Mana cost: {U}{U}{U}{G}{G}{G}
Steps:
  1. Cast Body of Research by paying {U}{U}{U}{G}{G}{G}, creating a 0/0 Fractal creature token and putting an amount of +1/+1 counters on it equal to your library size.
  2. At the beginning of your upkeep, Mayael's Aria triggers, causing you to put a +1/+1 counter on the Fractal token, gain ten life, and win the game.[END OF COMBO STEPS]

Result:
  - Win the game at the beginning of your next upkeep[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Mayael's Aria must be on the battlefield
  - Body of Research must be in your hand
  - Your library size is at least nineteen.
[END OF COMBO PREREQUISITES]
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