Shilgengar, Sire of Famine, Karn, Silver Golem, and Pitiless Plunderer

Prerequisites

• Shilgengar, Sire of Famine on the battlefield
• Karn, Silver Golem on the battlefield
• Pitiless Plunderer on the battlefield
• You control a permanent that is boosting the toughness of all your creatures by at least 1
• You control at least one additional creature

Steps

1. Activate Shilgengar's first ability by sacrificing another creature
2. When the creature dies, Pitiless Plunderer triggers, creating a Treasure token
3. Resolve the Shilgengar ability, creating a Blood token
4. Activate the Treasure by tapping and sacrificing it, adding
5. Activate Karn by paying , causing the Blood token to become an artifact creature until end of turn
6. The Blood token will not die due to the permanent stated in the pre-requisites causing its toughness to be 1 or greater
7. Repeat

Results

• Infinite LTB
• Infinite sacrifice triggers
• Infinite death triggers