Pattern of Rebirth, The Cauldron of Eternity, Boonweaver Giant, and Altar of Dementia

Prerequisites

• Pattern of Rebirth on the battlefield
• The Cauldron of Eternity on the battlefield
• Boonweaver Giant on the battlefield
• Altar of Dementia on the battlefield
• Pattern of Rebirth attached to Boonweaver Giant

Steps

1. Activate Altar of Dementia by sacrificing Boonweaver Giant
2. When Boonweaver Giant dies, The Cauldron of Eternity and Pattern of Rebirth trigger
3. Resolve the Cauldron of Eternity trigger, putting Boonweaver Giant on the bottom of your library from your graveyard
4. Resolve the Pattern of Rebirth trigger, putting Boonweaver Giant from your library onto the battlefield
5. When Boonweaver Giant enters the battlefield, it triggers, returning Pattern of Rebirth from your graveyard to the battlefield attached to Boonweaver Giant
6. Resolve the Altar of Dementia ability from step 1, causing target player to mill cards equal to Boonweaver Giant's power
7. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite mill
• Infinite sacrifice triggers
• Infinite self-mill