1. press 1 ab
2. press 2 ab right after the first with 0.18s window
look at the demonstration here
https://youtu.be/2QRw-pNUX4I

So you might have spotted that its pretty easy to cancel flight of your enemy, but, lets turn that in even bigger advantage
https://youtu.be/F7zWfTYuBqg
https://youtu.be/_ibumbfGXmg

I think that this glitch will confuse your enemy right of the start.
please enjoy this bug and let the other know that too, so that valve fix it sooner so that everybody could amaze their enemys with such a delicate, stunning technic.
Thank you for the time you spend on this guide, if you are interested in this hero, you might as well like to consider with my skill/item build on mars by this link Hero build