Activate Volrath by paying {1}, causing it to become a copy of Grim Poppet until your next turn.
Activate Grim Poppet by removing a -1/-1 counter from it, putting a -1/-1 counter on Volrath.
Hapatra triggers, creating a creature token.
Activate Volrath by removing a -1/-1 counter from it, putting a -1/-1 counter on Grim Poppet.
Hapatra triggers, creating a creature token.
Repeat from step 2.

Infinite ETB

Infinite creature tokens

Volrath, the Shapestealer

Grim Poppet

Hapatra, Vizier of Poisons

Activate Volrath by paying {1}, causing Volrath to become a copy of Patron of the Orochi until your next turn.
Put Patron of the Orochi into the graveyard due to the legend rule.
Activate all Forests and mana-producing green creatures you control by tapping them, adding at least {G}{G}.
Activate Volrath by tapping it, untapping all Forests and green creatures.
Activate Volrath by paying {1}, causing Volrath to become a copy of itself as Patron of the Orochi until your next turn.
Repeat from step 3.

Infinite green mana

Infinite mana green creatures and Forests you control can produce

Infinite untap of green creatures and Forests you control

Patron of the Orochi

Activate Volrath by paying {1}, turning Volrath into a 7/5 copy of Kami of Whispered Hopes.
Activate Volrath using Kami of Whispered Hope's ability by tapping it, adding {U}{U}{U}{U}{U}{U}{U}.
Activate Volrath by paying {1}, turning it into a copy of Sleep-Cursed Faerie.
Activate Volrath using Sleep-Cursed Faerie's ability by paying {1}{U},  untapping it.
Repeat.
Once you have infinite {U}, repeat the combo for mana of any color.

Infinite colored mana

Kami of Whispered Hopes

Sleep-Cursed Faerie

Activate Volrath by paying {1}, causing it to become a copy of Selvala until your next turn.
Activate Volrath by paying {G} and tapping it, adding at least {6}{G}.
Activate Volrath by paying {1}, causing it to become a copy of Locust Swarm until your next turn.
Activate Volrath by paying {G}, untapping it.
Repeat.

Selvala, Heart of the Wilds

Locust Swarm

Activate Volrath by paying {1}, causing it to become a copy of Kami of Whispered Hopes.
Activate Volrath by tapping it, adding at least seven {U}.
Activate Volrath by paying {1}, causing it to become a copy of Knacksaw Clique.
Activate Volrath by paying {1}{U} and untapping it, exiling the top card of an opponent's library with the ability to play it until end of turn.
Repeat.

Exile each opponent's library with the ability to play the exiled cards until end of turn

Knacksaw Clique

Activate Whisper, Blood Liturgist, sacrificing itself and an additional creature to return Volrath's Shapeshifter from the graveyard to the battlefield.
Pawn of Ulamog triggers, creating an Eldrazi spawn token.
Volrath's Shapeshifter enters the battlefield as a copy of Whisper, Blood Liturgist.
Activate Volrath's Shapeshifter, sacrificing itself and an Eldrazi spawn token to return Whisper, Blood Liturgist to the battlefield.
Pawn of Ulamog triggers, creating an Eldrazi spawn token.

Infinite death triggers

Infinite LTB

Infinite sacrifice triggers

Whisper, Blood Liturgist

Volrath's Shapeshifter

Thousand-Year Elixir

Pawn of Ulamog

Activate Volrath by paying {1}, causing it to become a copy of Avatar Kuruk until your next turn.
Activate Volrath by paying {20} minus {1} for each creature and/or artifact you can tap while activating it, causing you to take an extra turn after this one.
Repeat each turn.

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