Magnetic inducer
Among many things, Wheeljack's shoulder-mounted cannon can fire magnetic inducer shells. On detonation, they cover the target in a special magnetic dust. The victim, now magnetized, will find every metal object within 4000 feet is suddenly flying towards them. The dust may also force the victim to change mode and/or disable them.
Fiction
Marvel The Transformers comics
Wheeljack could fire a number of different shells from his shoulder cannons including magnetic-inducer shells which covered their victims in a magnetic dust, attracting ferrous objects from up to 4,000 feet away. Wheeljack's Universe profile
The Transformers cartoon
Following the construction of the Dinobots, the Autobots found themselves under attack by their own creations. Grimlock, Slag and Sludge rampaged through Headquarters until Optimus Prime ordered they be destroyed. Wheeljack instead suggested the use of his magnetic inducer, which covered the three Dinobots in shimmering yellow dust and forced them to return to robot mode, successfully halting their ruckus. S.O.S. Dinobots
Dreamwave Generation One continuity
Wheeljack's shoulder-mounted cannons could fire a magnetic inducer that caused its metallic target to attract other metal objects. Wheeljack's More than Meets the Eye profile
Unite Warriors
The combiner Sky Reign could fire magnetic inducer shells from his Wheeljack arm, using them in battle with Grand Galvatron. Sky Reign Chapter
Games
Transformers Legends
When the remaining three Dinobots went on a rampage following the disappearance of Grimlock and Swoop, Wheeljack used his magnetic inducer on Slug, though it turned out to be not as effective as expected. Day of the Dinobots - Part 1
