The templar is the most defensive class in Aion. They are the main tank of any group. He is designed to hold the lines and to keep enemies away from DPS classes and healers.
They are the most important class along with the cleric. If you plas as templar class and you have a skilled cleric to heal you, the success of the group is 75% assured.

This class in particular uses one handed swords and one wanded maces paired up with a shield. You have lots of defensive skills that requires a shield, so this item is a must if you choose to play as templar. You can use your shield not only for defensive aspects of the game, but also as your secondary weapon. You can hit with your shield to stun enemies for example.

If you play solo you will level up more slowly because you don’t have very high DPS. At the other hand if you have a skilled group to play with and you tank well, you will level up very fast. So leveling as a templar can be piece of cake if you know how to do it. I’ll say that if you choose this class, you must be ready to play in groups mostly, because templar are designed to be pure tanks. If you want to be a more offensive warrior then choose the gladiator.

In PvP templars are the only class avoided by many players. Why? Because they are very hard to kill due to their insane defense. The main problem for them in PvP is to keep the opponent at melee range. You must avoid classes that slow you down a lot, and especially healer classes because they can outlast you in 1vs1. Clerics can be beaten but a skilled chanter will always bring down any templar in 1on1 combat.

Positive Attributes

They have the highest defence and act as a main tank. They are always wanted in groups so plenty of gametime for you. Very difficult to kill and In most cases are avoided in PVP.
Negative Attributes

They have low to moderate DPS and no healing power meaning they rely purely on pots. Can only handle melee range attacks and can be easily slowed. Utterly group and gear dependent. Expensive class