This is the first deck I've ever made! I'm not a competetive player, and I'm not gonna play competetive, I just thought it would be fun to post a deck, someone might be able to use in the future 
Pokemon: 19
Strategy:
Use Klefki to get Bronzor and Dialga/Skarmory on bench. Dialga and Skarmory are main attackers, while Bronzong is there for energy acceleration. Klinklang is there for protection against threads like Charizard EXs. Dialga discards the energies, which then will be transfered back by using Bronzong onto a benched Dialga or Skarmory. Steel Shelter is there to prevent poison and sleep from Hypnotoxic Laser.
One of the biggest threads to this deck is Pyroar (FF), because it'll prevent Dialga and Skarmory from attacking, and then there's only Klinklang and Bronzong, which aren't as good as the other two (Klinklang is kinda good, but Bronzong not so much), so if anyone has any ideas, they'll be much appreciated
Make sure to put in translations for the unreleased cards! Thanks!
~Kecleon
Pokemon: 19
2x Klefki (Hyper Metal Chain Deck)
2x Klink (PLS)
2x Klinklang (PLS)
3x Bronzor (Hyper Metal Chain Deck)
3x Bronzong (Hyper Metal Chain Deck)
3x Dialga EX (Hyper Metal Chain Deck)
2x Cobalion EX (PLS)
1x Keldeo EX (BCR)
2x Steel Shelter
3x Professor Sycamore
2x N
2x Switch
2x Rare Candy
2x Evosoda
2x Shauna
4x Ultra Ball
3x Muscle Band
2x Lysandre
3x Skyla
2x Colress
2x Float Stone
3x Double Colourless Energy
8x Metal Energy
Strategy:
Use Klefki to get Bronzor and Dialga/Skarmory on bench. Dialga and Skarmory are main attackers, while Bronzong is there for energy acceleration. Klinklang is there for protection against threads like Charizard EXs. Dialga discards the energies, which then will be transfered back by using Bronzong onto a benched Dialga or Skarmory. Steel Shelter is there to prevent poison and sleep from Hypnotoxic Laser.
One of the biggest threads to this deck is Pyroar (FF), because it'll prevent Dialga and Skarmory from attacking, and then there's only Klinklang and Bronzong, which aren't as good as the other two (Klinklang is kinda good, but Bronzong not so much), so if anyone has any ideas, they'll be much appreciated
Make sure to put in translations for the unreleased cards! Thanks!
Translations
Bronzong - Metal - HP90
Stage 1 - Evolves from Bronzor
Ability: Metal Chain
Once during your turn, you may choose 1 Metal Energy from your discard pile and attach it to 1 of your Benched Pokemon.
[M][M][C] Hammer In: 60 damage.
Weakness: Fire (x2)
Resistance: Psychic (-20)
Retreat: 3
Dialga-EX - Metal - HP180
Basic Pokemon
[M][C][C] Chrono Wind: 60 damage. If the opponent's Active Pokemon is a Pokemon-EX, it cannot attack during your opponent's next turn.
[M][M][C][C] Fullmetal Impact: 150 damage. Discard 2 [M] Energy attached to this Pokemon.
When a Pokemon-EX has been Knocked Out, your opponent takes 2 Prize cards.
Weakness: Fire (x2)
Resistance: Psychic (-20)
Retreat: 2
Klefki - Metal - HP70
Basic Pokemon
[M] Call for Family: Search your deck for up to 2 Basic Pokemon and put them onto your Bench. Shuffle your deck afterward.
[M][C] Dull Light: 20 damage. Your opponent's Active Pokemon is now Confused.
Weakness: Fire (x2)
Resistance: Psychic (-20)
Retreat: 1
Steel Shelter - Trainer
Stadium
Remove all Special Conditions from [M] Pokemon in play. [M] Pokemon cannot be affected by Special Conditions.
This card stays in play when you play it. Discard this card if another Stadium card comes into play. If another card with the same name is in play, you can’t play this card.
Bronzong - Metal - HP90
Stage 1 - Evolves from Bronzor
Ability: Metal Chain
Once during your turn, you may choose 1 Metal Energy from your discard pile and attach it to 1 of your Benched Pokemon.
[M][M][C] Hammer In: 60 damage.
Weakness: Fire (x2)
Resistance: Psychic (-20)
Retreat: 3
Dialga-EX - Metal - HP180
Basic Pokemon
[M][C][C] Chrono Wind: 60 damage. If the opponent's Active Pokemon is a Pokemon-EX, it cannot attack during your opponent's next turn.
[M][M][C][C] Fullmetal Impact: 150 damage. Discard 2 [M] Energy attached to this Pokemon.
When a Pokemon-EX has been Knocked Out, your opponent takes 2 Prize cards.
Weakness: Fire (x2)
Resistance: Psychic (-20)
Retreat: 2
Klefki - Metal - HP70
Basic Pokemon
[M] Call for Family: Search your deck for up to 2 Basic Pokemon and put them onto your Bench. Shuffle your deck afterward.
[M][C] Dull Light: 20 damage. Your opponent's Active Pokemon is now Confused.
Weakness: Fire (x2)
Resistance: Psychic (-20)
Retreat: 1
Steel Shelter - Trainer
Stadium
Remove all Special Conditions from [M] Pokemon in play. [M] Pokemon cannot be affected by Special Conditions.
This card stays in play when you play it. Discard this card if another Stadium card comes into play. If another card with the same name is in play, you can’t play this card.