Skilled Warrior Achievment

[The_Mechanic]

So i'm unsure of the requirements for this achievment. I can't tell if i am supposed to place 1 skill point in each skill in a single tree of Gunpowder Mastery, Command, Bushido or am i supposed to place a skill point in each skill for all three of these?

[Zonda Zecarius]

1 in each skill in one of the trees.
Be a pretty stupid achievement if it was "just put 1 skill point in each tree"

[The_Mechanic]

Thanks! I am new to avatar conquest and didn't know how many skill points total it was possible to earn. With that being said i thought you might have to put 1 point in each skill for all three trees. I think you max out at 20? If that's true then obviously it's only one of these three because there wouldn't be enough skill points to accomplish the achievement.