Cast Sin either from your hand or command zone by paying {5}{G}{U} plus commander tax if applicable.
As Sin enters, remove all counters from all artifacts, enchantments and creatures you control, putting twice that many +1/+1 counters on Sin plus one due to Kami of Whispered Hopes.
When Sin enters, Intruder Alarm triggers, untapping all creatures.
Activate Altar of Dementia by sacrificing Sin.
Choose to return Sin to the command zone from your graveyard.
When Sin dies, it triggers, putting its counters plus an additional +1/+1 counter on Kami of Whispered Hopes.
Resolve the Altar of Dementia ability.
Activate Kami of Whispered Hopes by tapping it, adding an amount of {G} or {U} equal to its power.
Repeat.

Infinite LTB

Infinite ETB

Infinite colored mana

Infinite sacrifice triggers

Infinite death triggers

Infinite mill

Infinite self-mill

Infinite storm count

Infinite mana creatures you control can produce

Infinite untap of creatures

Infinite commander casts

Infinite +1/+1 counters on a creature

Sin, Unending Cataclysm

Intruder Alarm

Altar of Dementia

Kami of Whispered Hopes

Cast Sin either from your hand or command zone by paying {5}{G}{U} plus commander tax if applicable.
As Sin enters, remove all counters from all artifacts, enchantments and creatures you control, putting twice that many +1/+1 counters plus one due to Kami of Whispered Hopes on Sin.
Activate Phyrexian Altar by sacrificing Sin, adding {G/U}.
Choose to return Sin to the command zone from your graveyard.
When Sin dies, it and Kami of Whispered Hopes trigger.
When Sin dies, it triggers, putting its counters plus an additional +1/+1 counter on Kami of Whispered Hopes.
Resolve the Kami of Whispered Hopes trigger, untapping it.
Activate Kami of Whispered Hopes by tapping it, adding an amount of {G} or {U} equal to its power.
Repeat.

Thornbite Staff

Phyrexian Altar

Cast Sin either from your hand or command zone by paying {5}{G}{U} plus commander tax if applicable.
As Sin enters, remove all counters from all artifacts, enchantments and creatures you control, putting twice that many +1/+1 counters on Sin.
Activate Aura of Dominion by paying {1} and tapping Sin, untapping Kami of Whispered Hopes.
Activate Phyrexian Altar by sacrificing Sin, adding {G/U}.
Choose to return Sin to the command zone from your graveyard.
When Sin dies, it triggers, putting its counters on Kami of Whispered Hopes.
Activate Kami of Whispered Hopes by tapping it, adding an amount of {G} or {U} equal to its power.
Repeat.

Aura of Dominion

Search Results