It was a not hard after 5+ years of not playing dota. In fact I started to play at may 2022 on mid lane at 3300 mmr and in jule I had 1600 mmr 'cause of tiltingaggression and so forth.
Started from jule 2022 I decided to switch to 5 position and choose main hero as dazzle, its the best sup ever with 1 spell 'cause foes do not understand or foes do not understand before u'll reached 4k mmr+ otherwise it's free mmr. The only thing u need its to destroy 4 and after it u can destroy 3 foe pos and it will be free farm for carry.
Starting from 3500-4000 mmr the foes goes smart and do not let u kill him just clicking, from this level u need turn on ur brains )
The second part I learned – how to set wards. The 60% games depends of how u destroyed lane (with dazzle 1 spell) , the remain 40% – how u set wards. Just watch my replays I guess or watch some youtube guides. Use courier to deward and buy all obs + sentries.
Short overview from 1500 to 5600
1500-3000 – easy dazzle spam 1 spell
3000-3200 hard barrier of people. I went to 3300 and fell down to 2800 and so several times
3200-3800 easy up
3800-4200 the main very hard barrier
4200-4800 easy up
4800-5200 the very very hard barrier which I stuck about 3 months.
After 5200+ it was easy, literally some days.
Lets talk about behaviour score) From 3800 to 5500 I upped my mmr with 1800-3000 behaviour. I presume its a myth where u have some ruiners, low behaviour and etc. I do not imply that they doesn't exists, but its not a block for u.
Now my behaviour 4800 and I'm willing to improve it to 10k back.
When u pick Dazzle u need to ban axe, cause carry do not understand how to play vs it ( in 1500-4800), axe its not a block for axe, the farmed axe is a block) I have 80% winrate vs axe cause I know how to destroy him and 20% loses cause my 1 pos decided to pick am or so forth )
I found this heroes for best 5 pos: dazzle, jakiro – tier 1. Disruptor, wd, warlock – tier 2.
my dotabuff for proof is here
Source: https://www.reddit.com/r/DotA2/comments/11lxh6c/how_i_reached_immortal_from_herald_5_in_a_8/