Cadaverous Bloom, Unfulfilled Desires, Thassa's Oracle, Teferi's Ageless Insight, and Horizon Chimera

Prerequisites

• Cadaverous Bloom on the battlefield
• Unfulfilled Desires on the battlefield
• Thassa's Oracle in hand or in the library
• Teferi's Ageless Insight on the battlefield
• Horizon Chimera on the battlefield
• available

Steps

1. Activate Unfulfilled Desires by paying and one life, causing you to draw two cards and discard a card, ensuring not to discard Thassa's Oracle if it's in your hand
2. Horizon Chimera triggers twice, causing you to gain two life
3. Activate Cadaverous Bloom by exiling any card from your hand except Thassa's Oracle if it's in your hand, adding
4. Repeat until you have an empty library
5. Cast Thassa's Oracle by paying
6. Thassa's Oracle enters the battlefield, causing you to win the game

Results

• Infinite draw triggers
• Near-infinite black mana
• Near-infinite card draw
• Near-infinite green mana
• Near-infinite self-discard triggers
• Win the game