Actually Eli could totally kill whats coming. I think he has the best chance, actually. All you'd have to do was superheat the air of the room Solf is in. He has to talk to use his powers and to talk he's got to breath and when he does it's going to burn his throat and lungs. Because the length and power of his vectors are dependent on the volume and amount of gibberish he can spew even if he wasn't killed by this it would be crippling.

Then again super heated air is a pretty good way to kill anything.