Need a high elo player to explain to this unranked scrub why is the ADC-Support bot lane considered "necessary" and why don't people take mages/bruisers/whatever else.
EDIT: I think I didn't phrase this correctly. I'm not wondering why we have two people bot lane, but why is it always a marksman and a support. Why not a mage with a support, for example?
cuz bruisers get roasted in lane by ranged champs and then outscaled hard
Its actually not "necessary" that they be bot, but its just kind of the meta way for it to work, and it does have alot to do with drag. But if the question is why not do mages/bruisers bot lane and then have regular top as well, its because you need the ranged sustain damage at the end to win fights. A power spiked adc in a 5v5 has the most impact on fights, period. Thats why many other roles jobs, even mid laners, sometimes ends up being to peel for the adc, and so many CD's are worth being blown to snipe them. You also need the adc for pushing objectives because they do this the fastest.
It's the best way to distribute gold among the team.
The AD carry tends to be weak early, but scale incredibly well. Having an adc on your team means having better neutral objective slaying, as well as tower killing. As adc's tend to be more item reliant than gold reliant, it doesn't matter if they are solo lane or duo lane; they just need a high level of income.
As a support, you have a lot of decent base stats or raw utility that does not require a high level or high level of gold to perform. Obviously both of those allow you to support better, but you can get away by being much lower level than the rest of the players and still be impactful (look at pro matches, you regularly see supports 3 levels behind the curve).
Because these are two roles that don't need a lot of exp, and there are only 4 reliable sources of exp (top, mid, jungle, and bot) putting the two less xp dependent roles just works out nicely. Also because support does not need as much gold, it allows the adc to get all the farm.
The reason they are bot lane specifically is because the dragon used to give team wide gold to the entire team. Having extra people bot lane meant it was easier to try to take the dragon after a successful gank or lane shove. If we get to a point that rift herald is stronger than the dragons, it would not be too far fetched for the duo lane to move top side.
This is a good example of why. My team made our entire comp with tanks and supports to support our Tristana and look at the result. Tristana did 82k damage to champions and got 29 kills.
http://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/2565244675/209287161?tab=stats
Its not necessary As a support main I am only in lane for 5-7 minutes or so as soon as I get my first back I just roam and get the midlaner fed/help my jungler invade easier to deny farm to their jungle I will go back bot to help if my adv is getting ganked or wants to push (hes my duo so he is more than ok with me doing all this) so he picks champs that have a ton of waveclear to keep him in the cs game
Because Marksmen are the best class for securing objectives. Mages are better off midlane and the ADC needs a support to protect them (because they are the most important member on the team) and bot lane is the best place for both of them to go because of dragon control. Mages and other classes already have good ways to survive and so do most ADCs, but because they are the most important champions in the game, giving them as much gold and support as possible is what wins games. So having a support + mage, bruiser, etc. bot is very disadvantageous to your team.
I believe a lot of it revolves around dragon, and the fact that the tower in bot has the least health of any of the towers. Having 2 people bot increases the amount of pressure in the lane, and by proxy, the amount of pressure on dragon, which is an important objective.
Casters usually need EXP to scale well, shoving them bot-lane means they need to compete for EXP, when they're far more suitable mid-lane. Mid-laners also usually have some sort of disengage, or roam potential which means they can be anti-gank, or have more roam potential than let's say Tristana or Jinx who'd get shredded elsewhere.
Marksmen are necessary, because if you don't have a decent hypercarry and don't end by mid-game, you're going to be melted by ADCs, who typically outscale just about any other class of champions.
It has to do with Dragon Control and keeping the squishy ADC safe.
Sometimes people pick mages to go bot if they have an AD top or Mid. Bruisers are rarely picked because it's safe to assume the enemy team will pick the enemy bot lane.
Basically, objective control and teamwork makes the dream work.
