How can you create a combo with Devilish Valet, Mayael's Aria, Avenger of Zendikar, Vedalken Orrery?
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[START OF COMBO]This combo can be formed with Devilish Valet, Mayael's Aria, Avenger of Zendikar, Vedalken Orrery

Color identity: RGW
Mana cost: {5}{G}{G}
Steps:
  1. At the beginning of your upkeep, Mayael's Aria triggers.
  2. Holding priority, cast Avenger of Zendikar by paying {5}{G}{G}.
  3. Avenger of Zendikar enters the battlefield, triggering itself and Devilish Valet.
  4. Resolve the Avenger of Zendikar trigger, creating a 0/1 Plant creature token for each land you control.
  5. Each Plant token enters the battlefield, triggering Devilish Valet that many times.
  6. Resolve a Devilish Valet trigger, doubling its power until end of turn.
  7. Repeat step 6 for each remaining Devilish Valet trigger.
  8. Resolve the Mayael's Aria trigger, causing you to put a +1/+1 counter on each creature you control, gain ten life and win the game.[END OF COMBO STEPS]

Result:
  - Near-infinitely powerful Devilish Valet until end of turn
  - Win the game at the beginning of your next upkeep[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Devilish Valet must be on the battlefield
  - Mayael's Aria must be on the battlefield
  - Avenger of Zendikar must be in your hand
  - Vedalken Orrery must be on the battlefield
  - You control at least four lands.
[END OF COMBO PREREQUISITES]
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