What is the best ? I'm lvl 50 with luk 5, I'm thinking of the next 10 lvl increase everything in luk. would be nice?? It's my first character, I do not know if I'm normal or pure. Which one would I have the most damage? Taking into consideration that if I am normal luk I can use more equipment OBS: Do not consider Elemental Staff and Wand
Pure INT is definitely the way to go. Don't add any LUK. Otherwise, you're losing out on lots of damage. In terms of equipment, you can use high int bathrobes and maple wands early on, and transition to elemental wands and doros/doroness robes later on.
Just go pure int, even with the ability to use higher level equips, you'd lose out on so much int it wouldn't matter.
Here are some weapons around your level that don't require luk: Maple Lama Staff LVL43 Nocturnal Staff LVL43 Diao Chan Sword LVL48 Heart Wand LVL54 Maple Wisdom Staff LVL64 Maple Shine Wand LVL64