Activate Krark-Clan Ironworks by sacrificing Scrap Trawler, adding {C}{C}.
When Scrap Trawler dies, it triggers, returning Myr Retriever from your graveyard to your hand.
Cast Myr Retriever by paying {2}.
Bygone Bishop triggers, creating a Clue artifact token.
Activate Krark-Clan Ironworks twice by sacrificing the Clue and Myr Retriever, adding {C}{C}{C}{C}.
When Myr Retriever dies, it triggers, returning Scrap Trawler from your graveyard to your hand.
Cast Scrap Trawler by paying {3}.
Bygone Bishop triggers, creating a Clue artifact token.
Repeat.

Infinite artifact tokens

Infinite artifact ETB

Infinite card draw

Infinite Clue tokens

Infinite colorless mana

Infinite death triggers

Infinite draw triggers

Infinite creature ETB

Infinite creature LTB

Infinite creature sacrifice triggers

Infinite storm count

Bygone Bishop

Myr Retriever

Scrap Trawler

Krark-Clan Ironworks

Activate Krark-Clan Ironworks by sacrificing Junk Diver, adding {C}{C}.
When Junk Diver dies, it triggers, returning Myr Retriever from your graveyard to your hand.
Cast Myr Retriever by paying {2}.
Bygone Bishop triggers, creating a Clue artifact token.
Activate Krark-Clan Ironworks twice by sacrificing the Clue and Myr Retriever, adding {C}{C}{C}{C}.
When Myr Retriever dies, it triggers, returning Junk Diver from your graveyard to your hand.
Cast Junk Diver by paying {3}.
Bygone Bishop triggers, creating a Clue artifact token.
Repeat.

Junk Diver

Activate Krark-Clan Ironworks by sacrificing Workshop Assistant, adding {C}{C}.
When Workshop Assistant dies, it triggers, returning Myr Retriever from your graveyard to your hand.
Cast Myr Retriever by paying {2}.
Bygone Bishop triggers, creating a Clue artifact token.
Activate Krark-Clan Ironworks twice by sacrificing the Clue and Myr Retriever, adding {C}{C}{C}{C}.
When Myr Retriever dies, it triggers, returning Workshop Assistant from your graveyard to your hand.
Cast Workshop Assistant by paying {3}.
Bygone Bishop triggers, creating a Clue artifact token.
Repeat.

Workshop Assistant

Cast Whitemane Lion by paying its mana cost.
Bygone Bishop triggers twice, creating two Clue, two Food and two Treasure tokens.
When Whitemane Lion enters the battlefield, it triggers twice, returning itself and another creature with mana value 2 or less from the battlefield to your hand.
Activate the two Treasures by tapping and sacrificing them, adding two mana of any color(s).
Cast the other creature by paying its mana cost.
Bygone Bishop triggers twice, creating two Clue, two Food and two Treasure tokens.
Activate the two Treasures by tapping and sacrificing them, adding two mana of any color(s).
Repeat.

Combos with "Bygone Bishop"