Hex Parasite, Vorapede, Pitiless Plunderer, and Phyrexian Altar

Prerequisites

• Hex Parasite on the battlefield
• Vorapede on the battlefield
• Pitiless Plunderer on the battlefield
• Phyrexian Altar on the battlefield
• Vorapede does not have a +1/+1 counter on it

Steps

1. Activate Phyrexian Altar by sacrificing Vorapede, adding
2. Vorapede dies, triggering itself and Pitiless Plunderer
3. Resolve the Vorapede trigger, returning it from your graveyard to the battlefield with a +1/+1 counter on it
4. Resolve the Pitiless Plunderer trigger, creating a Treasure token
5. Activate the Treasure by tapping and sacrificing it, adding
6. Activate Hex Parasite by paying and removing the +1/+1 counter from Vorapede, giving Hex Parasite +1/+0 until end of turn
7. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinitely powerful Hex Parasite until end of turn
• Infinite sacrifice triggers