Activate Altar of Dementia by sacrificing God-Eternal Rhonas.
God-Eternal Rhonas dies, triggering itself and Verdant Succession.
Resolve the God-Eternal Rhonas trigger, putting it into your library third from the top.
Resolve the Verdant Succession trigger, searching your library for God-Eternal Rhonas, putting it onto the battlefield and shuffling your library.
God-Eternal Rhonas enters the battlefield, doubling the power of each other creature you control and giving them vigilance until end of turn.
Resolve the Altar of Dementia ability, causing target player to mill cards equal to God-Eternal Rhonas's power.
Repeat.

Infinite death triggers

Infinite ETB

Infinite LTB

Infinitely powerful creatures you control until end of turn

Infinite mill

Infinite sacrifice triggers

Infinite self-mill

Verdant Succession

God-Eternal Rhonas

Altar of Dementia

Activate Ashnod's Altar by sacrificing God-Eternal Rhonas, adding {C}{C}.
God-Eternal Rhonas dies, triggering itself and Verdant Succession.
Resolve the God-Eternal Rhonas trigger, putting it into your library third from the top.
Resolve the Verdant Succession trigger, searching your library for God-Eternal Rhonas, putting it onto the battlefield and shuffling your library.
God-Eternal Rhonas enters the battlefield, doubling the power of each other creature you control and giving them vigilance until end of turn.
Repeat.

Infinite colorless mana

Ashnod's Altar

Activate Blasting Station by tapping it and acrificing God-Eternal Rhonas.
When God-Eternal Rhonas dies, its second ability and Verdant Succession trigger.
Resolve the God-Eternal Rhonas trigger, putting it into your library from your graveyard third from the top.
Resolve the Verdant Succession trigger, searching your library for God-Eternal Rhonas and putting it onto the battlefield.
When God-Eternal Rhonas enters the battlefield, its first ability and Blasting Station trigger.
Resolve the Blasting Station trigger, untapping Blasting Station.
Resolve the God-Eternal Rhonas trigger, doubling the power and toughness of creatures you control until end of turn.
Resolve the Blasting Station ability from step 1, dealing 1 damage to any target.
Repeat.

Infinite damage

Infinitely large creatures you control until end of turn

Blasting Station

Activate Phyrexian Altar by sacrificing God-Eternal Rhonas, adding one mana of any color.
God-Eternal Rhonas dies, triggering itself and Verdant Succession.
Resolve the God-Eternal Rhonas trigger, putting it into your library third from the top.
Resolve the Verdant Succession trigger, searching your library for God-Eternal Rhonas, putting it onto the battlefield and shuffling your library.
God-Eternal Rhonas enters the battlefield, doubling the power of each other creature you control and giving them vigilance until end of turn.
Repeat.

Infinite colored mana

Phyrexian Altar

Activate Altar of Dementia by sacrificing God-Eternal Rhonas.
When God-Eternal Rhonas dies, it triggers, putting itself into your library third from the top.
Resolve the Altar of Dementia ability, causing you to mill cards equal to God-Eternal Rhonas's power, ultimately milling God-Eternal Rhonas.
Colossal Grave-Reaver's second ability triggers, putting God-Eternal Rhonas from your graveyard onto the battlefield.
Repeat.

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