Boonweaver Giant, Bartolomé del Presidio, and Unhallowed Pact

Prerequisites

• Boonweaver Giant on the battlefield
• Bartolomé del Presidio on the battlefield
• Unhallowed Pact on the battlefield

Steps

1. Activate Bartolomé del Presidio by sacrificing Boonweaver Giant When Boonweaver Giant dies, Unhallowed Pact triggers, returning Boonweaver Giant from your graveyard to the battlefield When Boonweaver Giant enters, it triggers, returning Unhallowed Pact from your graveyard to the battlefield attached to Boonweaver Giant
2. Resolve the Bartolomé del Presidio ability from step 1
3. Repeat

Results

• Infinite +1/+1 counters on a creature
• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers