Saheeli, Radiant Creator + Brudiclad, Telchor Engineer + Lightning Runner Combo

All permanents on the battlefield.

You have at least plus an additional if you control no other tokens or copies of Lightning Runner.

An opponent cannot block and kill creatures you control.

At the beginning of your combat phase, Brudiclad and Saheeli trigger.

Resolve the Saheeli trigger, causing you to pay to create a token copy of Lightning Runner.

Resolve the Brudiclad trigger, creating a 2/1 Phyrexian Myr artifact token and then causing each token you control to become a copy of the Lightning Runner token.

Declare all Lightning Runners you control as attackers, triggering their abilities.

Resolve all but one Lightning Runner ability, causing you to get for each ability and choosing not to pay each time.

Resolve the final Lightning Runner 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.

Move to your next combat phase. At the beginning of that phase, Saheeli and Brudiclad trigger.

Resolve the Saheeli trigger, choosing not to pay.

Repeat from step 3.

Infinite creature ETB

Infinite combat phases

Infinite creature tokens with haste

Infinite energy counters