you don't have to pay to get it sure, but if you want to enjoy the full content you'll have to use irl money. Why I compared it to LoL is because you need to play a lot of games to gather ingame currency (IP) to be able to unlock champions (there are over 100 champions). It doesn't sound bad at first but bare in mind that these type of games where knowing your ennemy ablities and so on makes a difference between winning and losing. if you know you ennemy champions, what they can do etc, you can prevent yourself dying and maybe win your lane. When someone buys a lot of champions with irl money, they get that advantage over you, they've played a lot of champions, they know what to except from you but you don't. Not only that, they can buy runes which gives extra damage or such.
It' s the same in brawhalla, it's why I refuse to call it 100% free to play, it's not pay2win but it's definitely not 100% f2p.
never said it was p2w, I only said it's not entirely f2p since others may have a small advantage over you, sure it's sall but it can make a difference between winning and losing. How can it be an advantage? read above as I explained to Vinnie.