Saheeli, Radiant Creator + Lightning Runner + Aethertide Whale + Aether Refinery

Prerequisites

• An opponent cannot block and kill Lightning Runner.
• You have at least .

Steps

1. 1At the beginning of your combat phase, Saheeli triggers, causing you to pay to create a token copy of Aethertide Whale with haste.
2. 2When the Aethertide Whale token enters the battlefield, it triggers, causing you to get twelve .
3. 3Declare 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. 4Repeat each combat phase.

Effects

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