Mastery Tips
 
In my opinion the best masteries to use are the 
Blue Style Mastery, the Black Style Mastery, and the Red Style 
Mastery.
 
Explination: The blue style is great for anti 
everything decks. Blue style  can block the following decks: dragon ball, 
anger, and survival.{provided the right cards}
The Black Style Mastery is great for both dragon 
ball decks and survival decks because every normal energy attack does 5 life 
cards 1 power stage and costs 2 power stage.
The Red Mastery good for quick anger and only 
anger.