Saheeli, Radiant Creator, Lightning Runner, Aethertide Whale, and Primal Vigor

Prerequisites

• Saheeli, Radiant Creator on the battlefield
• Lightning Runner on the battlefield
• Aethertide Whale on the battlefield
• Primal Vigor on the battlefield
• undefined

Steps

1. At the beginning of your combat phase, Saheeli triggers, causing you to pay to create two token copies of Aethertide Whale with haste
2. When the Aethertide Whale tokens enter the battlefield, they trigger, causing you to get twelve
3. Declare Lightning Runner as an attacker, triggering its ability, causing you to get and then pay eight to untap all creatures you control and to get an additional combat phase after this one
4. Repeat each combat phase

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite combat phases
• Infinite creature tokens with haste
• Infinite untap of creatures you control
• Infinite mana creatures you control can produce
• Infinite energy counters