I don't know why exactly this idea came to me, but it's been in my brain for a couple weeks now and I wanted to flesh it out and get it out there.
I had a character that I was purposefully going and picking up specific temp powers on, for largely RP-during-combat reasons. But it always disappoints me that temp powers are generally useless beyond a certain point or level of utility. Sure, there's good ones out there, but I don't think this idea breaks them too much.
The idea boils down to this: A Blaster primary that does nothing.
My brain says it needs to be Blaster, because they need a hand anyway and this is probably too broken under any other circumstance.
But essentially, the first five powers in the set are all Auto, with variations on a theme: Making temp powers better. The first two can be a choice between additional damage and additional accuracy, for any temp power that makes an attack. The third can add a boost to any defense or resistance gained by temp powers that are more armor-focused.
The fourth and fifth powers of the set increase the number of uses for temp powers that come with a set amount, and the amount of time for temp powers that have a duration before they expire. Essentially between these first five picks, you get the ability to have temp powers that can function in higher level environments, and without having to constantly revisit shops/mission arcs to regain them. (Though, deciding not to have those so you can "run out" of ammo is also a choice you can make.)
The sixth, seventh, eighth and ninth powers for the set are also auto, but I'm having trouble nailing down the ideas for them - I suspect each probably needs to add additional properties to the temporary powers you are using, but I am having trouble not making them too specific or narrow, but also not making them too broad or too easy mode. Things like tacking on AoE splashes to single-target powers, adding damage types to certain kinds of attacking temps, reducing endurance costs for toggles, and so on. Any suggestions welcome, there.
Maybe for the ninth I'd still like a nuke, or the ability to give a temp power nuke-like properties on a timed basis, maybe something that just procs a "hey this temp power with a single target hits up to 15 targets in a certain radius based on the power, instead", or something.
No idea how viable the whole thing is, but there's so many temporary powers out there that I think it'd be neat to be able to play a gadgeteer type who has to "invent" new toys and reload them and upkeep them, or an opportunist who sees a Rikti gun and says "yeah I can work with that", and so on.
Feel free to let me know what you think!