Garna, the Bloodflame, Sneak Attack, and Phyrexian Altar

Prerequisites

• Garna, the Bloodflame in hand
• Sneak Attack on the battlefield
• Phyrexian Altar on the battlefield
• available

Steps

1. Activate Sneak Attack by paying , putting Garna from your hand onto the battlefield
2. When Garna enters the battlefield, it triggers
3. Holding priority, activate Phyrexian Altar by sacrificing Garna, adding
4. Resolve the Garna trigger, returning it from your graveyard to your hand
5. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite blinking