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.