General

[quote=reconforce946]Get tempest coins, you can use them to get a special mastery book that you can choose from. It'll raise it to 30.[/quote]

it isnt in the special MMB
Edit: Looking for one in BROA

you have proof? o.0 I used like 5 jett MMB's none of them gave them. Then I checked online and multiple sources said that the jett mmb's didnt have relentless 20 :O

Not everything you can hear its true

i've heard that jett mmb doesn't give it

Try your luck with Jett's mmb
or quit your jett

@reconforce946: the max skill lvl is 20, so I can't get it

Get tempest coins, you can use them to get a special mastery book that you can choose from. It'll raise it to 30.