Jett 1st Job Builds {Maplestory}
Published by I took a year long break because I wasn’t earning a lot, but now I might start a few more guides simply because it’s fun! Partial credit to one of the builds and the skill details goes to iatecereal2day. I didn’t include all the job advancements because I got lazy :p.
I’m assuming you’ve already made your job advancement and you know what a Jett is (including his/her story).
First Job Skills
Passive Skills:
Comet Booster: At Max level: Accuracy+20, Speed+20, Jump+10. Max Level: 10
Shadow Heart: At Max level: Critical Rate +20%, Minimum Critical Damage: +10%. Max Level: 10
Active/Attack Skills:
Tornado Uppercut: At Max level: Damage: 350%, Max Enemies Hit: 6. Max level: 20
Double Shot: At Max level: Damage: 165% per hit, Number of Attacks: 2, Range: 380. Master Level: 20
Other Skills:
Glide Blast: Press the jump key again in the air to perform an additional jump; up to two mid-air jumps are possible. Master Level: 10
Builds:
Recommended Build (from me):
10. +1 Tornado Uppercut (1)
11. +3 Comet Booster (3)
12. +3 Comet Booster (6)
13. +3 Comet Booster (9)
14. +1 Comet Booster (10 *max*) +1 Glide Blast (1) +1 SAVE SP
15. +3 Glide Blast (4)
16. +3 Glide Blast (7)
17. +3 Glide Blast (10 *max*)
18. +3 Tornado Uppercut (4)
19. +3 Tornado Uppercut (7)
20. +3 Tornado Uppercut (10)
21. +3 Tornado Uppercut (13)
22. +3 Tornado Uppercut (16)
23. +3 Tornado Uppercut (19)
24. +1 Tornado Uppercut (20 *max*) +2 Shadow Heart (2)
25. +3 Shadow Heart (5)
26. +3 Shadow Heart (8)
27. +2 Shadow Heart (10 *max*)
28. +3 Double Shot (3)
29. +3 Double Shot (6)
30. +4 (using the SP you saved at level 14) Double Shot (10)
If I’m correct, Double Shot has to be at 10 to use Triple Fire. It isn’t a very useful skill, as it can only attack one monster at a time (Tornado Uppercut is your main [and only] mobbing skill at the moment). Maxing Glide Blast first turned out to be very useful for me when I was on my Jett, as many of the monsters you kill on the Jett story quests drop tons of potions.
Attacking Build:
10. +1 Tornado Uppercut (1)
11. +3 Comet Booster (3)
12. +3 Comet Booster (6)
13. +3 Comet Booster (9)
14. +1 Comet Booster (10 *max*) +2 Tornado Uppercut (3)
15. +3 Tornado Uppercut (6)
16. +3 Tornado Uppercut (9)
17. +3 Tornado Uppercut (12)
18. +3 Tornado Uppercut (15)
19. +3 Tornado Uppercut (18)
20. +2 Tornado Uppercut (20 *max*) +1 Shadow Heart (1)
21. +3 Shadow Heart (4)
22. +3 Shadow Heart (7)
23. +3 Shadow Heart (10 *max*)
24. +3 Double Shot (3)
25. +3 Double Shot (6)
26. +3 Double Shot (9)
27. +3 Double Shot (12)
28. +3 Glide Blast (3)
29. +3 Glide Blast (6)
30. +3 Glide Blast (9)
Actually, I don’t recommend this build too much. You don’t get to max Glide Blast (unless I made a mistake), which gives you a lot of increased mobility.
If I miscalculated on anything, please tell me and I can fix it later 
Sources: http://www.basilmarket.com/forum/2438055/0/iAteCereal2Days_Jett_Skill_Point_Build.html
Ahhhhh, it feels kind of good to be back. 
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