[2.0]KuteKitteh's Tanky Incinerate - Fast, Cheap & Durable, MF/end-game/Atziri-viable!

I have to honestly say this is my favourite ranged build so far. Super low gear requirement (wearing stuff for 1-2 chaos found on poe.trade, no uniques), very easy to cap resistances (in fact at one point I had like 140/130/110 or something like that without much effort at all), satisfies all STR required for red skills through tree alone, and HUGE damage and fast clearing speed. I downed act 1 boss in like 20 seconds, and act 4 final boss in like 5min without a single death. I finished entire act 2 in like 2 hours.

Incinerate is now my favourite spell.

Now I have a question. What are some fire spells that complement incinerate? I'm the type of person who gets bored easily from casting the same spell forever. Currently I'm just using incinerate + flame totem, which is essentially just an automated incinerate. What else can I use at the same time that will make it less boring, but not be 100% useless?