A basic overview of practical usage of currently known sorcerer skills.

Now for Valaka's commentary:

PvE:

“It’s all about timing, tactics and emplacement.”
 
Sorcerer, it’s all about timing, tactics and emplacement. Anyone can simply rush to an enemy and spam all their skills but the player will quickly realize that this is not how it works here. To be truly successful with a minimal lose of HP a sorcerer has to set up a tactic. Mobs in Tera will require different tactics and different approaches. The most important thing is to keep your enemy “cursed” and at a distance, meaning: stun and slow them as much as you can and keep your distances.
 
“Hit Hard!”
 
This is very important for a sorcerer; often their tactics will be to hit the enemy very hard before they can reach you. Skills such as Blastball are charging skills which are often the first to be casted. The most powerful combination would be the use of Contract of Wreck together with a charging skills such as Blastball as your first attack and make sure you hit as much minions as you can (if there are).
 
“Mana, Mana, Mana”
 
This is an obvious thing, without mana a sorcerer is pretty much dead meat, luckily Mana Boost will restore a part of the Mana. Use it as much as you can! As a magical class you don’t want to run out of Mana.
 
PvP:
 
For me PvP was tricky part, I’m more like an average-to-good PvPer.  As chime mentioned in this article, some skills have hitscan while other simply uses collision detection. Your opponent will mostly likely try to evade your attacks, especially if it is a slow attack using the collision detection system, at this time distance who was your ally might also become your enemy. Using traps in PvP might be useful but the opponent can easily figure out where it is, at least if the opponent kept an eye on you.
Make sure you know what skills use the hitscan system and which don’t. Hitscans are easy, all you have to do is point at your opponent, make sure they're in range and attack! Collision skills might require an immobile or slowed target, but it will mostly likely require anticipation. Yes, anticipate the movement of your enemy; this is very important for those collision detection skills and skills with a slow attack movement such as Blastball.

Pros:
-          Very powerful and devastating attacks
-          Ability to stun and slow
 
Cons:
-          Weak and quickly knocked back
-          Skills are very Mana consuming