Templar's are Tanks. Very good for group and going to instance or siege-battles.
1) A Templar's defense is high so you want to focus on his physical attacks.
The best way to do this is to enchant your gears and armors with Attack +5.
2) To be a needed group member you need to do your job as a Tank and take attacks from mobs.
Many who focus on instances as a Templar use manastones that enhance there HP and Block.
3) Templar's are good at PVP if u chose stigma skills wisely.
Templar's with good attack dominate PVP with there defense and strong force. I recommend if you do a lot of PVP to wield a Great sword for greater damage and to use stigmas that have powerful attacks with GS.
4) Templar's are great for an all around character, but not just that you can dominate in the Abyss!
Taking out the Fortress General can be your job. This is a big responsibility, but comes with huge rewards.
5) Mobs and Bosses can be take on by yourself.
Some bosses and most mobs are fairly easily killed with a Templar. This can also help with completing harder quests and earning mob drops faster and more efficiently.
SO ALL YOU TEMPS GO OUT THERE AND EARN YOUR WAY TO THE PATH OF GLORY!