How can you create a combo with Diamond Valley, Serra Avatar, Vizkopa Guildmage?
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[START OF COMBO]This combo can be formed with Diamond Valley, Serra Avatar, Vizkopa Guildmage

Color identity: WB
Mana cost: {1}{W}{B}
Steps:
  1. Activate Vizkopa Guildmage's second ability by paying {1}{W}{B}, causing each opponent to lose life when you gain life this turn.
  2. Activate Diamond Valley by tapping it and sacrificing Serra Avatar, causing you to gain life equal to Serra Avatar's power.
  3. Vizkopa Guildmage triggers, causing each opponent to lose life equal to the life you gained.
  4. Each opponent loses the game due to having zero or less life.[END OF COMBO STEPS]

Result:
  - Each opponent loses the game
  - Near-infinite lifegain
  - Near-infinite lifeloss[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - You have the highest life total or are tied for the highest life total.
[END OF COMBO PREREQUISITES]
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