First of All, my main character is a Pure Int Spear User with Lightning nuke as main n Fire nuke as secondary for the Cool-down time in between the nuke..
Secondly, i would suggest that you do NOT make a pure Int SPEAR user. imo Sword n shield is the way to go as i haf tried dueling people arround my level.
Sword VS Spear
Spear's Advantages:
More Hp from the weap's passives
More Dmg from the weapon
Sword's Advantages:
SHIELD.
ShIeLd
sHiElD
Overall:
the Shield Pwnz the hp and the dmg difference, @lv30, the passives gives just 329 extra hp. whereas the decent shield can atleast block 1/4 hits. which is
But after reading this, if u still find spear more useless, by all means go ahead

Don't let any1 tell you what to do, it is YOUR character~ these are just my opinions. as for the skills.. listen to Freedom-Fighta

also refer to Fly's guide on the sticki (nukerZ) ^^