The last Rumble question got me thinking, are there any early concepts/unimplemented abilities of Rumble you've got to share with us?

Honestly, it was long enough ago that it's really hard to remember. Additionally, there was a lot less time to actually experiment as we started and finished the project on a crazy timeline on a skeleton crew (myself & 1 artist for 2D/3D for 5 weeks, 1 animator and VFX artist for 1.5 weeks, a creative/narrative guy for ~ a week, and an audio guy for about 2 days) compared to modern champions we spend 10+ months on he was created at breakneck speed and while I'm proud as hell of the team that we were able to finish him in that amount of time and I think he turned out well, I feel it definitely shows when i compare him to our later champions that got a lot more time and polish. Most abilities I created I had to start and scrap in less than day due to time constraints, but off the cuff I remember a chainsaw, a grenade launcher, his E taser was a tether briefly, and there were mini-rockets. None of the abilites were mechanically very complex (I knew I couldn't afford the complexity with how difficult the heat system was to pick up. One anecdote I remember after several long nights of crunch and basically no sleep after I added the double shot to Rumble's E I had it as a Slow on hit and if you hit twice it became a Root. Ezreal (the designer), got really mad at me because the counterplay blew, - "If you get hit by the slow you can't dodge the second and you're just root". In my sleep deprived genius I then switched them so the first shot rooted if it hit and the second shot slowed. This unsurprisingly didn't seem to resolve his problem with the problem and he was (rightfully) quite furious with me. I do specifically recall having the most over the top visuals though for his ultimate though. I had layers of burning embers, geysers of flame (non-stop Annie W's firing into the air) and fireworks and explosions as each projectile landed. Looked cool as hell but it was a clarity nightmare and caused everyone to get ~4 fps and made them very... very angry with me :D