Pattern of Rebirth, Mortuary, Boonweaver Giant, and Carrion Feeder

Prerequisites

• Pattern of Rebirth on the battlefield
• Mortuary on the battlefield
• Boonweaver Giant on the battlefield
• Carrion Feeder on the battlefield
• Pattern of Rebirth attached to Boonweaver Giant

Steps

1. Activate Carrion Feeder by sacrificing Boonweaver Giant
2. When Boonweaver Giant dies, Mortuary and Pattern of Rebirth trigger
3. Resolve the Mortuary 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 Carrion Feeder ability from step 1, putting a +1/+1 counter on it
7. Repeat

Results

• Infinite +1/+1 counters on Carrion Feeder
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers