to be honest, i've played dota for YEARSSS now. One thing i can assure u guys is that no matter how high your rank is, if you solo and met against low rankers 3-4 party-together opponent, u will end up losing majority of the time. communication is the key

i created a smurf account and played with one friend of mine guardian rank, i am legend rank. i lost most of the game when opponent have 3-4 party together