How can you create a combo with Cadaverous Bloom, Zirda, the Dawnwaker, Xantcha, Sleeper Agent?
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[START OF COMBO]This combo can be formed with Cadaverous Bloom, Zirda, the Dawnwaker, Xantcha, Sleeper Agent

Color identity: BRGW
Mana cost: {1}
Steps:
  1. Activate Xantcha for {1}, drawing a card and causing its controller to lose 2 life.
  2. Activate Cadaverous Bloom, exiling a card from your hand and adding {B}{B} or {G}{G}.
  3. Activate Xantcha twice using the mana generated, drawing 2 cards and losing Xantcha's controller 4 life.
  4. Activate Cadaverous Bloom exiling a card from your hand adding {B}{B} or {G}{G}.
  5. Repeat from step 3.
  6. If the player controlling Xantcha reaches a point where they only have 1 or 2 life remaining, you may hold priority and activate her any number of times before the player dies and she is exiled to draw as many of the remaining cards in your library as you wish.[END OF COMBO STEPS]

Result:
  - Infinite draw triggers
  - Near-infinite black mana
  - Near-infinite card draw
  - Near-infinite green mana
  - Near-infinite lifeloss for target opponent[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Xantcha on the battlefield under an opponent's control.
[END OF COMBO PREREQUISITES]
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