Screams from Within, Bloodflow Connoisseur, and Garrison Excavator

Prerequisites

• Screams from Within on the battlefield
• Bloodflow Connoisseur on the battlefield
• Garrison Excavator on the battlefield

Steps

1. Activate Bloodflow Connoisseur by sacrificing the creature that has Screams from Within attached
2. When the creature dies, Screams from Within triggers, returning it from your graveyard to the battlefield attached to another creature you control
3. Garrison Excavator triggers, creating a creature token
4. Resolve the Bloodflow Connoisseur ability
5. Repeat

Results

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