Nobody can properly prepare for that ult.
Not just the first time... :|
First time it happened it scared me because I had NO IDEA WHAT WAS HAPPENING!
It is so disorienting when you get Kal ult cause you need to register what just happened to you and why your screen is green. After having it happen to me, I understand why they don't immediately fire after pulling during an engage
omg is that guy ok??
unfortunately I get massive lag spikes when I get Kalista ulted so...
I didn't know that when you launch and hit an enemy you reappear. I learned this after Kalista tried to save me from a 4 man gank. ._.