Warrior Tips

Even though warriors are known for fighting up front and soaking up a lot of damage, measures should always be taken to minimize the amount of damage taken to save pots and mesos:

* Jump attacking: Jumping over a small monster while attacking it, then proceeding to attack it from its behind is a good way to avoid bumping into it. One must always take note, however, of the terrain and position of other monsters so as to not take more damage than is necessary.
* Knowledge of enemy skills and habits: Know your enemy! Certain monsters have certain skills and attack patterns. Ghost Pirates and Dual Ghost Pirates don't use their unavoidable magic attack when you are on level ground with them a short distance away. Therefore, it would be wise to not jump around while attacking while staying close to the monster. Grim Phantom Watches only use their ice attack when they are facing left. Attack them from the right! It is knowledge that differentiates a good warrior from an average one.
* Knowledge of terrain: If there exists a spot on the map which allows you to attack you 1,5r enemy while not getting hit, why not use it?
* Use appropriate pots: Use pots appropriate for your HP/MP. Smaller pots usually have better meso/HP or MP ratio. Good MS players should seriously consider pots sold in New Leaf City, which for warriors and mages quickly become much more cost efficient than potions sold anywhere else.
* Master HP Increase Mastery as soon as possible. This will slow your training at first but it will increase your HP. Then by level 30, you will have about 1,500-1,600 HP. This applies to both normal warriors and HP warriors. If you do not decide to master it soon, you will lose about 500 HP.
http://strategywiki.org/wiki/MapleStory/Warrior_Guide