left mouse = WW
right mouse = teleport (or whatever)
1 = diamond skin
2 = eb
3 = frost nova
4 = armor
Hold down left mouse, 1, and 2. Spam 3. Order matters.
That's it. You only click one button.
I've been having wrist and finger pains from spamming. I have to say this setup works surprisingly well. Thank you for the suggestion. :)
The only other thing that I found useful, for me at least, is to change the stop movement key from left shift to spacebar.