If you plan to be a DPS power house then you can't just focus on offense without a decent enough defense to make sure you live long enough to land the next hit. Ever heard a good defense is the best offense? Especially in PvP/World Boss if you ignore defense you won't last very long. So this build focuses on a little defense with a very high offense at the same time.
MISCONCEPTION: From the builds I went through I can see that there are a lot of things that need to be cleared first. I'll do so as points.
1. STAT SYSTEM: In ToS the stats are varied only between the four starting base classes: Swordsman, Wizard, Archer and Cleric. You just get 1 stat point per level for the rest of the game per level, but also as you increase in class level(minor increase) or advance to different classes(major increase). This means that there are STAT differences Barbarian class (higher attack stat increase) and Peltasta (better def stat increase) class. Also, in ToS weapon restriction to classes are so weak, where a swordsman can equip wands and wizards can equip hammers. You can equip what you want but you have to pay very close attention to see if your skill requires the use of a specific weapon. It all comes down to damage/speed (mostly phy AoE dmg for us, with a slower speed for two handed sword). Ideally it's best to maintain just a single good weapon.
2. DAMAGE: Many people simply look at pure damage dealt out as a basis to choose their class. But instead you have to look at if it occurs multiple times, cool down times and SP used. People don't choose it due to it's attack damage, but overall due to it's bonuses, CC ability and combos. So when building classes make sure to take everything into consideration.
3. RANKS FOR SKILLS: The difference between skills of higher ranks compare to lower one are not only the higher base attack, but for each skill point that you put into that skill it gains a lot more attack than a skill of a lower rank. This per level increase remains constant for any skill and can be found out by subtracting a higher level from a lower one for same skill.