Detecting Auras
I played a Thresh game recently and there was a Cho' Gath building a
frozen heart. He juked me and one of my teammates by flashing over a wall and hiding in a bush. I didn't realize he was in a bush until I saw the frozen heart debuff on my debuff bar. This alerted me to his presence in the bush and I almost hooked him in time before he recalled. Is this supposed to happen? Also now that I know of this I will be exploiting it to snowball my team into winning.
. . . each were made or changed to have some kind of hidden passive mechanic, that unless you click on them to view their stats or previously know how they work; are going to blindside most people.