I agree with DT, but I am going to give you a better moveset to deal with the dreaded Fire type, especially Infernape.
Rain Dance: Not only weakens the power of Fire, but strengthens Weather Ball and makes it a Water type attack.
Thunder: Best make full use of Rain Dance, even though this doesn't really deals with Fire types, there are other Pokemon. Also, Thunder has 100% accuracy in Rain, a 25% chance of breaking through Protect and Detect, plus it already has high power and a 30% chance to paralyze.
Weather Ball: In rain, its power doubles and it becomes a Water type attack, perfect for dealing with Fire types.
Shadow Ball/Psychic: Either have STAB, or have a move exclusively used in this case to deal with Infernape.
Edit: Sorry, I just noticed that this is for a Drifblim you already have. Try: Thunder Wave, Psychic, Shadow Ball, and either Air Cutter or Rain Dance.