So I was playing Warframe last night. It's a free-to-play online game about space knights invading procedurally generated dungeons and killing the native inhabitants using guns, swords and special abilities that often apply to an area, in which it has an effect. Sometimes you fight a stationary machine called battlep- I mean reactor cores.

Anyways, the class I'm playing as has this cool ability! It's called "Radial Javelin". When you use it, your guy does a crouch and emits a number of piercing, magical bolts that are evenly scattered in all directions. Each bolt is individually very poweful, easily enough to at least halfway kill regular mobs. If you get up, close and personal when you use this ability, you can hit mobs with 2-3 bolts for massive damage! Each bolt also flies for a very long distance, so if you use it carefully you can totally snipe things with it.

And get this. If you're clever about it, you can do more! My friend plays as a class that deals with magnetic forces. One of his abilities is to magnetize an enemy so that all bullets in a certain radius around them get attracted to them and always hit. For the most party this just makes the enemy easier to hit, but we found a clever use for it:

We magnetized a minor boss. After it was magnetized, I ran up to him and used Radial Javelin. The effect of that was that every one of my piercing, magical bolts hit him, inflicting massive damage.

"Wow!", I thought, "I wonder why the development team at OOO can't come up with cool stuff like this?"

Anyways, that's my suggestion. A bomb that scatters piercing, magical, evenly spaced bolts in a circle that do a respectable amount of damage and fly for a very long distance, and, when used more dangerously and cleverly, can be turned more powerful through multihits.