Thran Vigil, and Bloodflow Connoisseur

Prerequisites

• Thran Vigil on the battlefield
• Bloodflow Connoisseur on the battlefield
• The persist creature does not have a -1/-1 counter on it
• It is your turn

Steps

1. Activate Bloodflow Connoisseur by sacrificing the persist creature
2. When the persist creature dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it
3. Thran Vigil triggers, putting a +1/+1 counter on the persist creature
4. Resolve the Bloodflow Connoisseur ability, putting a +1/+1 counter on it
5. Repeat

Results

• Infinite +1/+1 counters on Bloodflow Connoisseur
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers