During the Blackout Attack, the Watchdogs used Neodymium cores in their EMP generators in order to cause massive blackouts in large cities all around the world like Miami or Los Angeles. These cores were later reclaimed by S.H.I.E.L.D. when they thwarted the Watchdogs' plan.
The Neodymium Magnet was reused by S.H.I.E.L.D. during the Battle at the Chinatown Crew Headquarters against Eli Morrow. Aida combined it with an Inter-Dimensional Gate while another magnet was put onto Morrow's chest by Yo-Yo Rodriguez using her superhuman speed. This caused Morrow to be trapped into the giant Quantum Battery he had built, blocked by the other magnet planted on the ceiling by Aida so they could send both Morrow and the Quantum Battery into another dimension.