Adamaciptator cards: Useful supports for Synchros and excavation of Rock monsters, helping you get out Magnet Warriors.
Magnet Warrior cards: Just normal monsters, not much to see. Use to get Valkyrion.
Electromagnetic Warrior cards: Used to get out other Magnet Warriors and Berserkion. Tribute each of them as a quick effect to effectively get out other monsters.
Doki Doki: Used to cycle through Rock monsters. Helpful support.
Imperion Magnum: It's an epic boss monster with 4000 and a negate. Also serves as a good waifu card.
Red Eyes Dark Dragoon: Use with Super-Poly to counter some decks.
Starving Venom Dragon: Use with Poly or Super-Poly to counter some decks.
Superdreadnought Rail Cannon Gustav Max: Burn support.