So, in dota, this is how balanced the game is.
One hero, previously considered OP, they gave him an additional .2 second cast animation(pretty much delay) and reduced his speed by a minuscule amount. He nearly sucks now. Same think happened in the opposite for another hero, reduced cast times by .2 and increased how fast he TURNS(there are actually different turn rates to different heroes in dota), he's now considered OP.