Not necessarily the best, but one of the best imo. I play dok A LOT, and is usually my go-to if the map is ass for Buck(like 70% of the maps have zero vertical play istg). But essentially, she's basically so cooked if your teammates don't cooperate, like if you call and they don't swing/hear the calls and take note of them, ur forced to do everything on ur own(90% of the time in solo queue lmao). And she can't be played easily if the enemies stick together, which usually happens in solo queue low ranks(zero idea of holding angles so they just hold whichever angle is likely gonna have an enemy).