Woah, so many replies in so short time ^_^
Thanks for all the support so far, pretty much all my doubts have been erased
I would like to thanks Riggs, for answering question
1a.Well that's something that annoys me so much but i guess it's something we have to deal with it XD
Also to thank Psor who answered the whole 5 questions about this class
1.Well that's true, any 3rd class can AoE, if that is effective is another history XD
2.Well, i should have been more clear >.<, i meant as im playing as a Chaser, one of many passion of this game for me is the role that each class have, and i always like to support when i can (that's why i always have a AB, Sorcerer, Royal), and when need be a good killer (Rune,GX,Warlock,Ranger), but soo far i love to pull big mobs into my party that either they kill them all and says "woah" or get wiped out >.< but that's is only possible to attain with Thief classes so i guess that a positive thing.
3.I don't support the fact that single killing is the best tatic for leveling but.... i suck with mob kill so i guess i don't have other option XD, and guess what ? Eden Quest need most 30 kills for single mobs, piece of cake
4.Sadly true, Fatal menance was right to be nerfed to don't Teleport MVP's but... i would love to be more helpfull using Divest's and Masks on MVP's to weaken them or be more tank of my part, but with some paintings i guess i can have a portable Land Protector or a Quick Frenzy status, some things that i must work out later.
5.Well, all classes have pros and cons, but the most important part is when says that it's fun to play with :D
Well, i guess i will give a change some time for this class, dind't leved a thief class in soo long time that i believe that it will be nostalgic >.<
Thanks again everyone, the post will be open for new coming suggestions but so far, all my doubt's are clear now.