Pre-War Formalwear, Leonin Relic-Warder, and Bloodflow Connoisseur

Prerequisites

• Pre-War Formalwear on the battlefield
• Leonin Relic-Warder in hand
• Bloodflow Connoisseur on the battlefield
• undefined available

Steps

1. Cast Leonin Relic-Warder by paying
2. When Leonin Relic-Warder enters the battlefield, its first ability triggers, exiling Pre-War Formalwear
3. Activate Bloodflow Connoisseur by sacrificing Leonin Relic-Warder
4. When Leonin Relic-Warder dies, its second ability triggers, returning Pre-War Formalwear from exile to the battlefield
5. When Pre-War Formalwear enters the battlefield, it triggers, returning Leonin Relic-Warder from your graveyard to the battlefield, and attaching Pre-War Formalwear to it
6. When Leonin Relic-Warder enters the battlefield, its first ability triggers, exiling Pre-War Formalwear
7. Resolve the Bloodflow Connoisseur ability from step 3
8. Repeat from step 3

Results

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