Ok.
If you have one.
Don't use it in the start it will give your opponent the upper hand.
Remember,when you start the duel always put a monster in def or atk.
You will need it to defend your life points.
Anyway,you should get the booster pack called "Force Of The Breaker"
It has fire cards like Volcanic Doomfire.
Here is some more info on the booster pack
http://entertainment.upperdeck.com/yugioh/en/products/boosters/FOTB.aspx