Aethertide Whale + Doubling Season + Lightning Runner + Saheeli, Radiant Creator

GUR identity

Commander legal

The 4 combo pieces

• Aethertide Whale
• Doubling Season
• Lightning Runner
• Saheeli, Radiant Creator

What must be in place

An opponent cannot block and kill Lightning Runner.

How to execute it

1. At the beginning of your combat phase, Saheeli triggers, causing you to pay {E}{E}{E} 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 {E}.
3. Declare Lightning Runner as an attacker, triggering its ability, causing you to get {E}{E} and then pay eight {E} to untap all creatures you control and to get an additional combat phase after this one.
4. Repeat each combat phase.

What the combo produces

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