Steel (Bronzong / Dialga EX / Cobalion EX)

[Seafan13]

This is the Bronzong list that I ran at my local city and I went 2-4.:
Pokemon:

• 
  3 Brongzor (60 PHF)
  3 Brongzong (61 PHF)
  3 Dialga EX (62 PHF)
  2 Cobalion EX (93 PLS)
  1 Aegislash EX (65 PHF)
  1 Mewtwo EX (BW45)
  2 Keldeo EX (BW61)

Trainers/Supporters/Stadiums:

• 
  4 N
  3 Professor Sycamore
  2 Colress
  2 Skyla
  2 Lysander
  1 Xerosic
  1 Lysandre's Trump Card
  3 Ultra Ball
  1 Evosoda
  1 Professor's Letter
  4 Muscle Band
  3 Float Stone
  2 Startling Megaphone
  1 Tool Retriever
  2 VS Seeker
  1 Sacred Ash
  1 Dowsing Machine

Energy:

• 
  9 Metal Energy
  2 Double Colorless Energy

Could you pleas provide advice for what I can improve on with this deck.

 

[bbninjas]

-1 Evosoda (not worth it, IMO)
-1 Dowsing Machine (Computer Search is better)

+1 Professor Sycamore (consistency)
+1 Computer Search (Superior)

I also suggest taking out Sacred Ash and just using Trump Card, to add one of these:
-1 Sacred Ash (see above)
+1 VS Seeker (I like 3)/ +1 Bronzor (just in case it gets KO'd)

 

[Seafan13]

-1 Evosoda (not worth it, IMO)
-1 Dowsing Machine (Computer Search is better)

+1 Professor Sycamore (consistency)
+1 Computer Search (Superior)

I also suggest taking out Sacred Ash and just using Trump Card, to add one of these:
-1 Sacred Ash (see above)
+1 VS Seeker (I like 3)/ +1 Bronzor (just in case it gets KO'd)

I see this but could you elaborate on why you think that Computer Search is better in this deck.

 

[bbninjas]

I find Computer Search better because you are more likely to need to find something in your deck, rather than in your discard. A lot of stuff in your discard should be Energy, while Supporters can be gathered by VS Seeker; Pokemon can be shuffled in by Sacred Ash. Items should be shuffled back in using Lysandre's Trump Card.

Basically, Computer Search is proven as the normally superior and the better Ace Spec for general use, although both are fine.

 

[Ivy_Profen]

I use dowsing machine in my metal deck. it is slightly different. It allows me to use more one of cards that are important to this deck, without having to resort to trump card. Thus making more space for some luxury cards, such as Max Potion. 2 of max potion can easily swing a match in your favor. By denying 2 prizes each, if your opponent cant OHKO your pokemon.