So what order shud i level the skills? My guidie said Mana Surge then Mind Control/DI first.
I started off with Mind Surge (people stupidly call it "Mana Surge" for goodness knows what reason), since my primary reason for an illusionist is dungeons (never intended to PvP with it at all).
I kept Stimuation and Deadly Icicle approximately the same level (sometimes one or the other trails behind 3-4 levels), I didn't bother with Hypnotic Eye mainly because all levelling it does is boosts the damage of the next hit it recieves, and this only occurs once every 30 seconds.
As for Mind Control, I find using this ridiculously funny and makes the illusionist amazingly powerful with crowd control (if used on the right enemy). Using this skill multiple times on the Confused Walkers in Malice Palace made me "lol" in real life a lot as when the Charmed enemy uses its skill, it makes all other enemies run around in circles, which I find incredibly funny (although it does have a little problem with the pulling).
Moving onto the talents, I started with aiming for the boost in Stimuation, hence I got a 10% boost in Cast SPD, helping the Winter Chill and Deadly Icicle cast faster (which obviously boosts DPS) in the meantime. Next was the boosts to Lv.5 of Avid Reader (+ATK/M-ATK of Grimoires) and Pyrotechnics (+M-Crit Rate), further boosting damage (more crits + more damage = kill faster).
Later, I decided to avoid gaining aggro (Illusionists can't tank, obviously) by putting points into Transformation up to Lv.4, allowing the tank to hold aggro while still being able to inflict massive DPS. This sent me to put points into Lv.5 Spiritual Domination (vital in case I forget to Mind Surge often).
Mind Surge is important to me, hence I got the boost of Awakening (+20% MP regeneration and +2 seconds to Mind Surge), followed by the boost of Lv.5 to Psychology (INT boost) to further aid my DPS.