Sek'Kuar, Deathkeeper, Cryptolith Rite, Nether Traitor, and Corpse Blockade

Prerequisites

• Sek'Kuar, Deathkeeper on the battlefield
• Cryptolith Rite on the battlefield
• Nether Traitor on the battlefield
• Corpse Blockade on the battlefield

Steps

1. Activate Corpse Blockade by sacrificing Nether Traitor
2. Sek'Kuar triggers, creating a 3/1 Graveborn creature token creature with haste
3. Resolve the Corpse Blockade ability, giving it deathtouch until end of turn
4. Activate the Graveborn token using the ability from Cryptolith Rite by tapping it, adding
5. Activate Corpse Blockade by sacrificing the Graveborn token
6. Nether Traitor triggers, causing you to pay to return it from your graveyard to the battlefield
7. Resolve the Corpse Blockade ability, giving it deathtouch until end of turn
8. Activate Nether Traitor using the ability from Cryptolith Rite by tapping it, adding one mana of any color
9. Repeat

Results

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