Lv4 Wall of Fire
+ Upgrade (Your core Scythe skill <3)
Lv4 Fireball + Upgrade
Lv4 Fire of Fury + Upgrade
*Lv whatever Pumpkin Bomb - You may get this skill but be warned, a rumor says the damage is bugged, I have not experienced this yet
Lv whatever Fire Field
Lv4 Windy Blast
Lv2 Tornado + Upgrade (optional but recommended)
Lv3 Rock Fist
Lv3 or Lv4 Sandstorm
Lv2 Magic Missile (I believe Lv1 shoots 2 missiles, right? If it shoots 3 then keep it at Lv1, otherwise go for Lv2)
Lv3 Heal (may increase if you wish, I kept mine at 5)
Lv1 Pillar of Light
Lv1 Ice Blade + Upgrade (optional skill but recommended for big single strikes in PvE or Ice Blade+Sandstorm trick game in PvP)
Lv3 Ice Crystal
Lv whatever Freeze
Lv whatever Ice Burst + Upgrade
Lv2 Windy Weapon (prereq. for Rust Tornado)
Lv whatever Max HP Increase (this is a buff, this will be your healing skill per 150 seconds while you wait for Heal's enormous cooldown of 270)
Max Increase Damage (this is a buff)
Max all element Mastery skills (Scythe, Water, Fire, Wind), but keep Holy Mastery at Lv3 for Pillar of Light.
Avoid these skills:
Pillars of Fire (it requires higher level Wall of Fire/Fireball as prereq for Fire Mastery, which raises their cooldown. The damage sucks anyways and you do more with Wall of Fire per 3 seconds)
HP/MP increase (these are the passives. It's a very small amount later on when you have thousands upon thousands of both at high levels, but it's a good dump skill if you have nothing better to raise)
Sleep (I think it has some use, but not many, I'd say avoid it unless you have nothing better to take)
Cloth Mastery (A lot of people don't like this. The mana returned is either bugged or doesn't work right to my understanding and this leaves you with very little physical defense, a lot of Angela's mix and match armors to find the best Phy/Mag and damage bonuses. You want a pretty balanced amount.
While you can avoid Cloth Mastery I still use it just in case it does become more useful. Right now mine is at Lv6 but whatever. I don't feel like hunting for stat armor, so.
Anyways, trust me on this build. With this build I have 159 spare points in case I have some skill emergency in the future. If you have questions feel free to ask.