For anyone used to more western style MMOs, the buffing systems in Aion may be a little foreign to you. Having a very clear overview of how these systems will affect your gameplay will help you become that much better suited to the streamlined, fast paced combat of Aion at the higher levels.
Titles are in almost every MMO on the planet, but they are a little different in Aion in that they actually provide a bit of a stat boost for anyone that gets them. You can only choose one title at any given time, but it can often take long and convoluted quest chains to unlock the rarest and best of the titles.
There are between 2 and 10 titles available for most major zones for each race, so you'll need to do some research on how to get them and where to find them as you level up.
Manastones are the fundamental means of boosting the different stats of your character. You can put a manastone on almost every different armor slot on your character. This allows you to find and line up the different stats your particular character needs. Later in the game, you'll be able to change the manastones into other manastones so that you can snag only the stats you need. The top three manastone stats to boost include Physical Critical Strike, Attack Power, and Magic Boost. These three stats are also the most expensive many times over.
The next thing you should focus on is enhancements for your gear. This is a completely different thing altogether that will allow you to extract various items from gear that you've farmed or bought off the Trade Broker and then use your various professions to craft them together.
The best way to take advantage of this situation is to load up on the different enhancements you can make before you start crafting items. The better your enhancements, the more possible it might be to land yourself with some rare procs that will provide you with a variety of boosts to the gear you are crafting.
These are just three of the many different buffing systems in Aion that will allow you to specialize how your character plays and what you will get out of them as you progress in levels. Do it right and you'll be light years ahead of your opponents when it comes time to master the various content.