Introduction
Alright, so you need to know how to make a Pure Str Glavie, eh?
Pure Str Glavies can level up decently fast, but not as fast as an Int, however. They are also very strong in PvP, only rivaled by Blade. If you want a fast leveler, make an Int, but if you want to level at a good speed, while being awesome at PvP, this is the build for you
Stat Placements
Put all your points into Strength. Don't make the mistake of putting any in Int, it'll decrease your Physical Balance, your Physical Damage, and your health. Trust me, higher up, it makes a BIG difference.
Skillz
As every build, this build will need SKILLZ!!!! However, which skill to choose is quite a tough choice.
There are ~2 main Glavie builds from my experience. Since the level cap in kSRO, my masteries will be 90 at highest.
1. Level 90 Heuksal, Level 90 Fire, Level 60 Lightning, Level 60 Ice.
This build is GREAT, and when farmed, it will make you into an unbelievably deadly tank. The Ice is mainly for the defense buff, and the passive. At 60, they make a sum of 84 physical defense which is like an extra piece of armor.
2. Level 90 Heuksal, Level 90 Fire, Level 60 Lightning.
This build is much like the first, but it takes less farming, and it doesn't have the Ice Buff. You will still maintain killing power.
Alright, now that I've established which masteries to acquire, I will list the series of skills(not the skill names themselves, unless I say otherwise).
Heuksal(Spear & Glavie mastery)
The skills here are relatively easy to choose.
Soul Departs Spear Series(Maxed out)
Ghost Spear Series(Maxed out)
Chain Spear Series(Optional; Great for PvE, sucks for PvP)
Flying Dragon Series(Get at least level one of the first book, max it if you have the SP)
Cheolsam Force Passive(Max it out)
Fire(... Fire Mastery, what did you think?)
Fire Force(Maxed out, great for burn)
Fire Shield(Maxed out; You need a shield to use it, but you can unequip the shield after casting the buff)
Flame Body(Get first two books maxed, get the 3rd book to level one, it will save SP)
Flame Devil Body(This is the passive, max it out)
Fire Protection Series(Great, since nukers WILL hurt a lot, max it out if you have the SP)
Lightning
Lightning is an excellent support tree, but I would never use it as a main for Pure Str.
Windwalk Series(Max it out, ESPECIALLY Ghost Walk, its great for escaping from high levels)
Piercing Force Series(Not really neccesary, IMO, but if you have the SP do it; This is a very low priority)
Concentration Series(Some people say they don't notice a difference, some say they do. Its really up to you whether or not you want it.)
Heavens Force Series(Same as with Concentration)
Ice
This will be mainly used for Frost Guard, and Cold Armor. NOTE: Unless you're getting it to level 60, don't get it at all. At 60, the defense increase nearly doubles, and the cold tree is almost useless until then.
Frost Guard Series(Max it, great Phys Defense when combined with the passive)
Cold Armor(Max it out along with Frost Guard)
Frost Nova(Very useful, get just the level required for the next book)
Cold Wave Series(Get level one, NEVER MAX IT!!! This is next to useless, but its fun to shoot people with Ice)
Priorities
If you don't want to SP farm as much, you need priorities in mind. Here's my list.
Soul Spear
Ghost Spear
Cheolsam Force
Fire Force(Fire imbue)
Grasswalk
Flame Body
Chain Spear
Flame Devil Body.
Flying Dragon
Remember, only get level one of each Flame Body book, until you can get the next book. You do NOT have to choose your skills according to this, but that's my priority list, basicly.
This is a basic outline for what skills to get, and what mastery levels to get. Make your build unique, while using this to help you choose your skills. How you vary your build can make you stronger than others, or weaker, and can make it less of a cookie cutter 

.