The heroes in fiction can always hit and kill their enemies when the writer says, and this is typically instant or almost as quick. Does Drizzt Do' Urden need to wait for his turn, or roll to hit? No. He gets to go right in and outperform any D&D warrior for the most part, and so do most fantasy heroes. If Drizzt was in real D&D, though, he would be slowed down. So if you want to play a ranger like Drizzt in the books, you need to understand he will have big limitations even if you get to 20th level. If the DM gave you his ability, at any level, you could do as he does in the books, though. Unless everyone can play such a character, he would overshadow everyone and the challenges he would need to face, for the game to be challenging, would be hard to approach with any strategy.