How to Raise Your Base Hero Rating
Hey guys,
I recently joined the forums despite having played the game for a while now (3 years, roughly) but I took a couple of breaks and I used to be very inactive. But recently, I've decided to play the game a bit more and grind in quests and the arenas to get more champions, but unfortunately, no 4-stars yet. Even though I've played the game for a while, my total hero rating is very low at 37,500.
I see other players who are lower than me in terms of Summoner Levels, but have twice as much hero rating.
I was just wondering if there's any way to boost it up; I've heard that they are related to masteries but I'm just as clueless about that as the hero ratings.