Now that I am 39 and have my basic powers (Fire/storm) MUHAHAHAHAHAHA.....
Getting into a smaller space, hallway in a warehouse or office building, dead end cave, sometimes even a bigger spaces, and have 10+ mobs in the air bouncing off the floor, walls, ceiling, and objects in the game world like popcorn because I have unleashed, flashfire, tornado, lightning storm, and bonfire.... with friends and/or in a large space I of course use firecages to keep things contained, by myself (or with a small number of ranged friends) I let lose and use what can only be called CHAOS control as I laugh maniacally and my imps run around taking tasty bites out of all those nasty bad guys..... *IF* and I mean only *IF* things look like something might be able to actually stand upon its feet and think about starting an attack I can always use Gale - though for the most part it really blows.
With the Immob changes Fire cages + Gale is actually pretty nifty..... it does KD instead of doing nothing with the immob now. Can keep knocking a group over if they are being a problem.