Cadaverous Bloom, Zirda, the Dawnwaker, and Xantcha, Sleeper Agent

Prerequisites

• Cadaverous Bloom on the battlefield
• Zirda, the Dawnwaker on the battlefield
• Xantcha, Sleeper Agent on the battlefield
• Xantcha on the battlefield under an opponent's control
• available

Steps

1. Activate Xantcha for , drawing a card and causing its controller to lose 2 life
2. Activate Cadaverous Bloom, exiling a card from your hand and adding or
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 or
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

Results

• Infinite draw triggers
• Near-infinite black mana
• Near-infinite card draw
• Near-infinite green mana
• Near-infinite lifeloss for target opponent