Hard To Guess What the Enemy Champions do

It sucks to learn what an enemy hero does by losing to heroes that you don't own. Is Riot going to do something about this? At least in Heroes of The Storm you could try every hero and test their skills. Some champ designs aren't intuitive either. I didn't know Yorick's ult allow him to deal bonus % dmg of enemy's max health until I tried him. I don't know if there is a universal indicator that shows that you can be hit for max % health. This really kills the game when you have to sit and wait for the game to end because by the time you understand more the enemy has already gotten ahead.