Alright so i felt inspired to try flamestrike after above posts and guess what. blizzard refuses to cast anywhere but at my feet but flamestrike does something all together different for me.

Look how far away center one is

Showing max range with same spell and i didn't move at all

So who can think of good uses for that :P

Edit: ok i tried it a few more times it casts in the air making it look really far away. /smackself and btw this is using the mini map get ping position script i was using before it casts about the same relative to the toons but does not cast it where the ping happened