Boonweaver Giant, Yahenni, Undying Partisan, and Minion's Return

Prerequisites

• Boonweaver Giant on the battlefield
• Yahenni, Undying Partisan on the battlefield
• Minion's Return on the battlefield

Steps

1. Activate Yahenni by sacrificing Boonweaver Giant When Boonweaver Giant dies, Minion's Return triggers, returning Boonweaver Giant from your graveyard to the battlefield When Boonweaver Giant enters, it triggers, returning Minion's Return from your graveyard to the battlefield attached to Boonweaver Giant
2. Resolve the Yahenni ability from step 1
3. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers