Sharuum the Hegemon, and Vesuvan Doppelganger

Prerequisites

• Sharuum the Hegemon on the battlefield
• Vesuvan Doppelganger in hand
• available

Steps

1. Cast Vesuvan Doppelganger by paying
2. Vesuvan Doppelganger enters as a copy of Sharuum
3. Put Sharuum into the graveyard due to the legend rule
4. Vesuvan Doppelganger triggers, returning Sharuum from your graveyard to the battlefield
5. Put Sharuum into the graveyard due to the legend rule
6. Sharuum enters the battlefield triggers, returning itself from your graveyard to the battlefield
7. Repeat from step 5

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB