Deathrender, Heirloom Blade, Ashnod's Altar, and Emrakul, the Aeons Torn

Prerequisites

• Deathrender on the battlefield
• Heirloom Blade on the battlefield
• Ashnod's Altar on the battlefield
• Emrakul, the Aeons Torn in hand

Steps

1. Activate Ashnod's Altar by sacrificing Emrakul, adding
2. When Emrakul dies, it, Heirloom Blade and Deathrender trigger
3. Resolve the Emrakul trigger, shuffling it into your library
4. Resolve the Heirloom Blade trigger, causing you to reveal cards from the top of your library until you reveal Emrakul and put it into your hand
5. Resolve the Deathrender trigger, putting Emrakul from your hand onto the battlefield and attaching Deathrender to it
6. Activate Heirloom Blade's equip ability by paying , attaching it to Emrakul
7. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite colorless mana