As you see the title. This build is effective without buff while you have spells for depends how you use them. WoG is great for very close range. Chaos great fireball is control zone where you want a player would go. Firesurge is also works as chaos great fireball, however you can move while cast it. Great combustion is best for trap as when a player come to you as you knew he would to then FIRE IT ON HIM/HER.
Sorry for my English if you didnt get clear what is I am talking about.