Activate Coretapper's first ability by tapping it, putting a charge counter on Magistrate's Scepter.
Activate Coretapper's second ability by sacrificing it, putting two charge counters on Magistrate's Scepter.
Activate Magistrate's Scepter's second ability by tapping it and removing three charge counters from it, taking an extra turn after this one.
Declare Order of Whiteclay as an attacker.
Activate Order of Whiteclay by paying {1}{W}{W} and untapping it, return Coretapper from your graveyard to the battlefield.
Repeat each turn.

Infinite turns

Lock

Order of Whiteclay

Coretapper

Magistrate's Scepter

Activate Order of Whiteclay by tapping it, adding {W} that can only be spent to activate an ability of a creature.
Activate Wild Cantor by sacrificing it, adding {W}.
Activate Order of Whiteclay by paying {W}{W} and untapping it, returning Wild Cantor from your graveyard to the battlefield.
Repeat.

Infinite LTB

Infinite ETB

Infinite sacrifice triggers

Infinite death triggers

Tazri, Stalwart Survivor

Wild Cantor

Biomancer's Familiar

Activate Order of Whiteclay by tapping it, adding {W}.
Activate Wild Cantor by sacrificing it, adding {W}.
Activate Order of Whiteclay by paying {W}{W} and untapping it, returning Wild Cantor from your graveyard to the battlefield.
Repeat.

Cryptolith Rite

Zirda, the Dawnwaker

Activate Order of Whiteclay by tapping it, adding {W}{W}.
Activate Order of Whiteclay by paying {1}{W}{W} and untapping it, returning a creature card with mana value three or less from your graveyard to the battlefield.
Activate Ashnod's Altar by sacrificing the creature, adding {C}{C}.
Repeat.

Infinite colorless mana

Infinite landfall triggers

Nature's Embrace

Ashaya, Soul of the Wild

Ashnod's Altar

Activate a basic Plains by tapping it, adding {W}.
Activate Earthcraft by tapping Order of Whiteclay, untapping the Plains.
Activate a basic Plains by tapping it, adding {W}.
Activate Earthcraft by tapping Wild Cantor, untapping the Plains.
Activate Wild Cantor by sacrificing it, adding {W}.
Activate Order of Whiteclay by paying {1}{W}{W} and untapping it, returning Wild Cantor from your graveyard to the battlefield.
Repeat.

Earthcraft

Combos with "Order of Whiteclay"