Train Connection (DRLG-EN039) - Dragons of Legend Unlimited

Must be equipped to an EARTH Machine-Type monster, by banishing 2 Level 10 or higher Machine-Type monsters from your Graveyard, and cannot be equipped by other ways. The equipped monster's ATK becomes double its original ATK, also if it attacks a Defense Position monster, inflict piercing battle damage to your opponent. Other monsters you control cannot attack.