You can kill target dummies with ignite, but now how you would expect.
As the title says. Here I will lay out the steps on how to kill the dummy along with exactly who I was playing when I did it myself, just in case it could be helpful.
HOW TO KILL A TARGET DUMMY
- Get the target dummy to the lowest health possible, which is 100.
- Ignite the dummy.
- Damage the dummy.
It's that simple. Some weird things that happen that could be of note, is that when ignite is put on the bot, it actually goes below 100 health. However, it won't reach 1 hp. For me it help somewhere around 70. Then of course another weird thing that happened was the fact that ignite wasn't killing it, but the attack afterwards is. It's really strange and really seems out of place.
When I tested it I was playing Zed, although I would assume it would work on anyone. I also managed to kill a dummy with my ult, giving me the bonus AD from it, which lead to even weirder things happening. (The source of the buff, to be exact.)