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 Treasury Thrull as an attacker.
Treasury Thrull triggers, returning Coretapper from your graveyard to your hand.
In your postcombat main phase, cast Coretapper by paying {2}.
Repeat each turn.

Infinite turns

Lock

Treasury Thrull

Coretapper

Magistrate's Scepter

At the beginning of your upkeep, sacrifice Second Chance and take an extra turn.
Attack with Treasury Thrull, returning Second Chance from your graveyard to your hand.
Cast Second Chance.
Pass the turn.
Repeat.

Second Chance

Declare Treasury Thrull and the mana-producing creatures as attackers.
Treasury Thrull triggers, returning Dryad Arbor to your hand from your graveyard.
Move to your postcombat main phase.
Cast Waves of Aggression from your graveyard for its retrace cost by paying {3}{R/W}{R/W} and discarding Dryad Arbor, untapping all creatures that attacked this turn, and causing you to get an additional combat and main phase after this one.
Activate the mana-producing creatures by tapping them, adding at least {3}{R/W}{R/W}.
Move to your next combat phase, and declare Treasury Thrull as an attacker.
Repeat from step 2.

Infinite combat phases

Infinite magecraft triggers

Infinite self-discard triggers

Infinite storm count

Waves of Aggression

Dryad Arbor

Declare Treasury Thrull and the creature with Breath of Fury attached as attackers.
Treasury Thrull triggers, returning a creature card with mana value 3 or less from your graveyard to your hand.
Cast the creature by paying {0} due to Aluren.
Deal combat damage using the creature that has Breath of Fury attached.
Breath of Fury triggers, causing you to sacrifice the creature it is attached to, then attach Breath of Fury to the creature with mana value 3 or less, then causing you to untap all creatures you control and to get an additional combat phase after this one.
Repeat each combat phase.

Combos with "Treasury Thrull"