Metal Core Barrier has just been revealed from SM9b Full Metal Wall! The set will release in Japan on February 1st.
Pokemon Tool: Attach a Pokemon Tool to 1 of your Pokemon that doesn’t already have a Pokemon Tool attached.
If this card is attached to a Pokemon, discard this card at the end of your opponent’s turn.
The [M] Pokemon this card is attached to takes 70 less damage from your opponent’s attacks (after applying Weakness and Resistance).
Thanks goes to tunu for the translation!