Koskinator
Smash Lord
I'm pretty sure if you flame choke someone at a ledge, so that they grab it, they have no invincibility frames. I tested it against computers, and I could flame choke into ledge spike everytime, as long as they stayed there. I know it isn't much, but if it works, that means a flame choke at a ledge could result in a spike if the person decides to just hang out.