Dr. Madison Li + Intruder Alarm + Robobrain War Mind + Megatog
Dr. Madison Li
Intruder Alarm
Robobrain War Mind
Megatog
Infinite artifact ETBInfinite artifact LTBInfinite artifact sacrifice triggersInfinite creature LTBInfinite creature ETBInfinite creature sacrifice triggersInfinite death triggersInfinite energy countersInfinitely large creature until end of turn
How it works
Cast Robobrain War Mind by paying 3.
When Robobrain War Mind enters, it and Intruder Alarm trigger.
Resolve the Robobrain War Mind trigger, causing you to get E for each artifact creature you control.
Resolve the Intruder Alarm trigger, untapping all creatures.
Activate Megatog by sacrificing Robobrain War Mind.
Activate Dr. Madison Li by tapping it and paying EEEEE, returning Robobrain War Mind from your graveyard to the battlefield.