I always thought bombardment was a pretty cool skill, but I’ve never seen it used in a build. Is there any kind of build that runs it?
Barrels of Spikes works for Invoker.
LoN Bombardment - Basically a LoN build using Belt of the Trove and that one flail that gives double bombardments. Used to be the best build, what, 10 seasons ago or something? Can do 110 with it, but it’s def not the top build anymore. Solid though.
I’ve got an old-school LoN / Thorns / Bombardment build on one of my Crusaders…
https://eu.diablo3.com/en/profile/Meteorblade-2266/hero/114942415
…but it’s just nowhere near as effective as alternative builds.
Well, the build isn’t the strongest but let’s be real here, your gear is also awful so that doesn’t help. 
Here’s a better looking one: https://eu.diablo3.com/en/profile/Kikaha-2290/hero/51162484
I didn’t really upgrade it recently (I just did a 110 with it a few months ago, it’s on yt if you’re interested, simulated 2k5 para), but nowadays I’d probably trade off heart of iron for illu boots in cube, equip the ice climbers, and change the gloves stone gauntlets.