Тут на реддите гайд для русичей подогнали для буста

DotA has had several changes through the years, but in the end with the exception of tip tier games, pubs have remained the same throughout since the game's release I would assume since the old WC3 days. I can only speak for NA DotA but the easiest route to 6k is the next:
0-2.5k mmr
You pick heroes to split push, you focus on split pushing and rat DotA. You become an expert RAT and in the process you understand how rat works. To make this climb you need heroes that excel at structure dmg. Pick LD, Tiny, NP, Meepo, Lycan, BM. Other picks work like AM, Naga and Morph but at this level you probably don't understand how those heroes work so I would not pick them. Enemies below 2k don't know what TPs are so you need to exploit that you need to buy your own wards in order to push safely. If you geed good at split pushing not only will you climb to 2.5k mmr but you will also learn to defend against it in upper brackets.
2.5-3.8k mmr
You need to pick a strong core late game hero. In this bracket you can still use the Split Pushing Technique if you wait for last pick and they don't have anything good against split pushing it may still work. However at this level players are a little more intelligent and people understand the values of TPs. In order to go up in this bracket you will need to learn to CS. You cannot miss a single CS in this bracket, don't go for kills focus on farming and not dying. Buy your own wards if you have to as a core so you can keep farming and DO NOT DIE. Dying will just hurt your farming and item progression. People don't know how to team fight yet so don't join any team fights until the 40 min mark when you should have enough items create a huge impact if you didn't die and focused on not missing a single CS while your teammates and the enemy went around the map dint jack shit and dying.
3.8-4.5k mmr
This is the most CANCEROUS disgusting trench of them all so heed my warning. Be polite, do not try to teach teammates how to play they won't learn anything in 40 min, ANYTHING. You can play support or core here it doesn't matter the objective is to demoralize the enemy, people are so fucking toxic it's not even funny. look at the map, and have a TP ready for when the enemy decides to stupidly dive your teammates under tower, it works like a charm. If you are loosing say 10-0 or 15-0 even 20-0 you can still win, the enemy WILL THROW. Remember be polite, look for kills on cores, look at the freaking map stay alive. If you're winning you'll team WILL THROW, try to calm people down in chat and create a productive environment this trench is all about mentality.
4.5k - 5.4k mmr
Time to try hard, no other way around it. If you don't try HARD every single game no matter the role you chose you will simply not get above 4.7k. You need to TRY HARD every ranked game you need to do your best since minute 1 to the end of the game. Don't get upset, mute naysayers, and try your hardest. Another way is to SPAM a fucking hero every fucking game but I think that's boring and it won't help you in the long run.
5.4k - 6k mmr
Same as previous but with a microphone and a lot more strategy. Talk, make opinions, praise teammates for doing something well and create a friendly environment.
So yeah there you have it, I have no fucking clue how people get to 7k and above :c