Pattern of Rebirth, Mortuary, Boonweaver Giant, and Umbral Collar Zealot

Prerequisites

• Pattern of Rebirth on the battlefield
• Mortuary on the battlefield
• Boonweaver Giant on the battlefield
• Umbral Collar Zealot on the battlefield

Steps

1. Activate Umbral Collar Zealot 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 Umbral Collar Zealot ability from step 1 Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite surveil 1