The spark trap is a very old, previously long lost artefact of highly mysterious origins and with an obscure history. All we know for sure about it is that:
- It is legendary, and ancient;
- It was originally forged or used by early Autobots;
- It possesses the power to trap sparks.
If you want to find out exactly what happens when Scavenger takes possession of it, you can read my new short story entitled The Spark Trap, posted at: FanFiction.net and Lexicon.