THIS IS IT!:
Let's start in Bluestin...
* Bluestin as the Item and SS as the catalyst...
* Titanium as the item and Bluestin as the catalyst...
* Shadow Titanium as the item and Titanium as the catalyst..
* Osmium as the item and Shadow Titanium as the catalyst..
* ShineGuard as the item and Osmium as the catalyst...
* Mithril as the item and SG as the catalyst...

Back To This:
For Suit:
Option: HP UP...
CATALYST: HELM(any type of helm...for bladers etc.)
For Boots:
Option: HP UP...
CATALYST: Helm(any type of helm...for bladers etc.)
For Helm:
Option: Critical Damage Increase
CATALYST: Double Handed Sword
For Sword:
Option: Critical Damage Increase
CATALYST: Double Handed Sword

And that's the good options to have if you want to wear OSM set....

And go Directly wear Mithril not SG.....(SG is for catalyst only...and buy some 1 slotted, no ups.....helm and RED OSM only)

And for final touch....

For Mithril Set..

If you have the guts to buy some crafted Mithril...
BUY THIS CRAFTED PARTS:
For Gloves, Boots and Suit: VAMP....
For Helm: Deathblow....

....of course you must buy the slotted ones....IF...you have the guts to buy it.....

hmmmm...VAMP for Suits, Boots and Gloves because....lifesteal is very important and of course if you're MITHRIL SET you will not go some quest and quest and quest......you'll go for DUELS and WARS....and I know it...
and that's why I recommend VAMP for those parts only...and you know why...you know what i mean(if you have lifesteal your life will get cabal alz back to you after hitting an opponent and make em' say "WHAT THE??WHY??")....then if it is slotted.... HP UP for your suit and boots...and if you're lucky... have some lifesteal in your gloves.....

For helm..why DEATHBLOW....haha..you know also what i mean (to increase your critical damage...to make your opponent say "OUCH!")....and for slotted ones ...crit dmg up is the good one....

FOR TACTICS:
I have given you the characteristics of the warrior class...

And for the tactics to easy level up....

For low levels:(1-60)
Go kill some Orange Named Enemies..that are stronger than you....because as what i have said...warrior has the highest defense...