Cast Sol Ring by paying its mana cost.
When Sol Ring enters, Surge Conductor triggers, putting one +1/+1 counter on Arcbound Reclaimer and at least two additional artfacts you control.
Activate Sol Ring by tapping it, adding mana.
Activate Krark-Clan Ironworks by sacrificing Sol Ring, adding {C}{C}.
Activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting Sol Ring from your graveyard on top of your library.
Activate Iron Spider's last ability by paying {2} and removing two +1/+1 counters from artifacts you control, drawing Sol Ring.
Repeat.

Infinite colorless mana

Infinite draw triggers

Infinite proliferate

Infinite storm count

Infinite artifact ETB

Infinite artifact LTB

Infinite artifact sacrifice triggers

Arcbound Reclaimer

Iron Spider, Stark Upgrade

Krark-Clan Ironworks

Sol Ring

Surge Conductor

Cast Ancestral Statue by paying {4}.
When Ancestral Statue enters the battlefield, it and Surge Conductor trigger.
Resolve the Ancestral Statue trigger, returning it from the battlefield to your hand.
Resolve the Surge Conductor trigger, putting a charge counter on Magistrate's Scepter.
Repeat from step 1 two additional times.
Activate Magistrate's Scepter's second ability by tapping and removing three charge counters from it, causing you to take an extra turn after this one.
Repeat each turn.

Infinite turns

Lock

Magistrate's Scepter

Ancestral Statue

Activate Sensei's Divining Top's second ability by tapping it, causing you to draw a card and put Sensei's Divining Top on top of your library.
Cast Sensei's Diving Top from the top of your library by paying {0} and removing a counter from a creature you control.
When Sensei's Divining Top enters the battlefield, Surge Conductor triggers, putting a counter on a creature you control that already has a counter on it.
Repeat.

Combos with "Surge Conductor"