Pulsemage Advocate + Altar of Dementia + Intruder Alarm
Pulsemage Advocate
Altar of Dementia
Intruder Alarm
Infinite card draw for opponentsInfinite death triggersInfinite creature ETBInfinite creature LTBInfinite mana creatures you control can produceInfinite creature sacrifice triggersInfinite untap of creatures
How it works
Activate Altar of Dementia by sacrificing a creature with power three or greater, causing target opponent to mill cards equal to the sacrificed creature's power.
Activate Pulsemage Advocate by tapping it and putting three cards from an opponent's graveyard into their owner's hand, returning the creature from your graveyard to the battlefield.
The creature enters the battlefield, triggering Intruder Alarm, untapping all creatures.