Boonweaver Giant, Viscera Seer, and Kaya's Ghostform

Prerequisites

• Boonweaver Giant on the battlefield
• Viscera Seer on the battlefield
• Kaya's Ghostform on the battlefield

Steps

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

Results

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