Sek'Kuar, Deathkeeper, Cryptolith Rite, Nether Traitor, and Bloodthrone Vampire

Prerequisites

• Sek'Kuar, Deathkeeper on the battlefield
• Cryptolith Rite on the battlefield
• Nether Traitor on the battlefield
• Bloodthrone Vampire on the battlefield

Steps

1. Activate Bloodthrone Vampire by sacrificing Nether Traitor
2. Sek'Kuar triggers, creating a 3/1 Graveborn creature token creature with haste
3. Resolve the Bloodthrone Vampire ability, giving it +2/+2 until end of turn
4. Activate the Graveborn token using the ability from Cryptolith Rite by tapping it, adding
5. Activate Bloodthrone Vampire 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 Bloodthrone Vampire ability, giving it +2/+2 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
• Infinitely large Bloodthrone Vampire until end of turn
• Infinite sacrifice triggers