Train Connection

Equip Spell

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.

Rulings – Yugipedia

Printings:

Dragons of Legend: DRLG-EN039 (Super Rare) - 2014-04-25
Dragons of Legend: The Complete Series: DLCS-EN041 (Common) - 2020-09-10

Prices:

Cardmarket: 0.10 €
TCGplayer: $ 0.10