Scrap Trawler

Mana cost: {3}
Type: Artifact Creature — Construct
Power / toughness: 3 / 2
Set: Aether Revolt #175 (rare)
Price: $1.25 USD

Whenever this creature dies or another artifact you control is put into a graveyard from the battlefield, return to your hand target artifact card in your graveyard with lesser mana value.

Scrap Trawler has 10 printings, first in Aether Revolt (2017). EDHREC ranks it #887 among Commander cards. It appears most in Ragost, Deft Gastronaut decks (11,370 on EDHREC). 2 public decks on TCG run it. It has 4 official rulings.

Legality

commander: legal
legacy: legal
vintage: legal
pauper: not legal
modern: legal
pioneer: legal
standard: not legal
brawl: legal

Public decks that run Scrap Trawler

Growing Threat - March of the Machine Commander, led by Brimaz, Blight of Oreskos
Lorehold Legacies - Commander 2021, led by Osgir, the Reconstructor

Commanders that run Scrap Trawler most

Deck counts from EDHREC.

Ragost, Deft Gastronaut: 11,370 decks
Breya, Etherium Shaper: 7,012 decks
Dr. Eggman: 6,604 decks
Imskir Iron-Eater: 3,107 decks
Mishra, Eminent One: 2,899 decks
Toph, the First Metalbender: 2,680 decks
Osgir, the Reconstructor: 2,588 decks
Emry, Lurker of the Loch: 2,291 decks

Often played with Scrap Trawler

Cards that show up in the same decks on EDHREC.

Rulings

2017-02-09: The target artifact card must have a lesser mana value than the artifact that caused Scrap Trawler's ability to trigger by being put into a graveyard. Use the artifact's mana value as it last existed on the battlefield to determine what may be returned.
2017-02-09: If an artifact is a copy of another artifact with greater mana value, such as Sculpting Steel copying an artifact with mana value 4, Scrap Trawler's ability can target that artifact card in your graveyard when that artifact is put into your graveyard.
2017-02-09: While on the battlefield or in a graveyard, {X} in an object's mana cost is 0.
2017-02-09: If Scrap Trawler and another artifact you control are put into a graveyard at the same time, Scrap Trawler's ability triggers for each of them.