Nether Traitor, Defiant Salvager, Sek'Kuar, Deathkeeper, and Enduring Vitality

Prerequisites

• Nether Traitor on the battlefield
• Defiant Salvager on the battlefield
• Sek'Kuar, Deathkeeper on the battlefield
• Enduring Vitality on the battlefield

Steps

1. Activate Defiant Salvager by sacrificing Nether Traitor Sek'Kuar triggers, creating a 3/1 Graveborn creature token creature with haste
2. Resolve Defiant Salvager's ability, putting a +1/+1 counter on it
3. Activate the Graveborn token using the ability granted by Enduring Vitality by tapping it, adding
4. Activate Defiant Salvager by sacrificing the Graveborn token Nether Traitor triggers, causing you to pay to return it from your graveyard to the battlefield
5. Resolve Defiant Salvager's ability, putting a +1/+1 counter on it
6. Activate Nether Traitor using the ability granted by Enduring Vitality by tapping it, adding
7. Repeat

Results

• Infinite +1/+1 counters on a creature
• Infinite colored mana
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers