For the new format:
-1 Cyber Jar
-2 Spear Dragon
+2 Exploder Dragon
"When this card is destroyed by battle and sent to the graveyard, destroy the monster that destroyed it. While this card is attacking, any damage either player takes from a battle involving this card becomes 0."
This card will make your opponent think about attacking.
+1 Cyber Dragon
It is almost essential for decks in this format to have three of him.
-1 Goblin Elite Attack Force
+2 Mirage Dragon
-1 Breaker the Magical Warrior
You need to take out Breaker (because he is banned). Goblin Elite needs to go for the fact that he doesn't have a real purpose in this deck.
Mirage Dragon will really annoy your opponent and will make Mirror Force, Saukeretsu Armor, and Widespread Ruin useless which most, if not all people run.
-1 Dark Hole
-1 Level Up!
-1 Level Modulation
+2 Enemy Controller
+1 Shrink
+2 Smashing Ground
All will protect your monsters, or destroy your opponents.
- all traps (7)
+3 Royal Decree
This will protect your dragons from traps.
This will bring your deck down 2 cards, which will make it run smother. Hope this helps.