how do brawlers work

so yeah how do they work now?
i didnt know how they used to work either as i only started back again recently.

can you use them on frost dragon bones and gilder altar 2 burners?

 

No, that won't work anymore as there are no more pvp worlds and hence no more altars in hotzones/the wilderness.

You'll have to think of something else for prayer.

 

They work in the wildy which gives x4 xp than normal
anywhere in rs gives x2 i think

with altar just use them in your house it still gives bonus xp just not as much as usual