Sek'Kuar, Deathkeeper, Bloodsoaked Champion, Bartolomé del Presidio, and Pitiless Plunderer

Prerequisites

• Sek'Kuar, Deathkeeper on the battlefield
• Bloodsoaked Champion in the graveyard
• Bartolomé del Presidio on the battlefield
• Pitiless Plunderer on the battlefield

Steps

1. Activate Bartolomé del Presidio by sacrificing Bloodsoaked Champion
2. When Bloodsoaked Champion dies, Pitiless Plunderer and Sek'Kuar trigger, creating a creature token and a Treasure token
3. Resolve the Bartolomé del Presidio ability
4. Activate Bartolomé del Presidio by sacrificing the creature token
5. When the creature token dies, Pitiless Plunderer triggers, creating a Treasure token
6. Resolve the Bartolomé del Presidio ability
7. Activate the Treasures by tapping and sacrificing them, adding
8. Activate Bloodsoaked Champion by paying , returning it from your graveyard to the battlefield
9. Repeat

Results

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