As all know archer have weak defense, and is not so strong in battles, but archer have their advantages:

They can fly and they help a lot in guild war by hitting pole and that is an opportunity to knock down the pole.

Why is that an advantage? Because trojan, warrior and ninja can kill just melee characters, who are on the ground. They just can hit with thunder and fire if they have.

Fire and water taoist and archer can't kill someone who got a nice gear by 1 hit, so as an archer is hit by other archer you can use pots to heal yourself.

While archers fly, on guild war map, there is a place that no one can see your arrows hitting the pole, so they can knock down the pole without being hit or waste the potions.

You can keep hitting the pole until someone discovers you.

The good point as an archer is that you can use shift screen and hit the pole. You can move from a side to side and run in circle around pole using shift screen, so you can keep yourself alive.

Also, in defense side, when your enemies are trying to get inside the castle, archer and fire taoist should stay on the walls and kill the players who try to destroy the gate, they should stack each other, with guard summoned on them, so no one could hit a person until the guard dies.

Because ninja, warrior and trojan's skills are based on stamina, archer can hit them, so that they can't regain the stamina faster, the damage doesn't matter just keep hitting them, so they can't get stamina.

Once the gate is down, you can use scatter to kill their weakness waters and hit all trojans, warriors and ninjas, so they can't regain their stamina.

Scatter have a big area of distance, so you can hit the player who are not even in your screen that why the archer always hit you from a big distance. Being an archer you hit faster pole and you can get lots of silvers if you have a big damage!

When you hit the pole your guild donation will be increased, so go at Guild War and kill them all!