Okey, Let`s start:
1-Table of contents:
1-Table of contents
2-Armor and Gear
3-Skills
4-Grinding
2-Armor and Gear:
A Cleric rod

A Shield

A Staff

Robe

3-Skills:
Wizard Skills:

 Earth Spirit: Required, Increases the attack power of earth.

 Cold Spirit: Required, Increases the attack power of cold.

 Fire Spirit: Required, Increases the attack power of fire.

 Lightning Spirit: Required, Increases the attack power of lightning.

 Intelligence: Required, Decreases MP consumption when using wizard skills.

 Life Control: Optional,
Reduces HP but increases mag. Damage.

 Magic Bound: Optional,
Increases attack range for wizard skills.

 Life Turnover: Optional, See Life Control.

 Ground Charge: Optional.

 Root: Optional, It Stuns the enemy, usefull against party monsters while healing yourself.

 Earth Shock: Required, like ground charge but longer range.

 Earth Barrier: Required.

 Ground Rave: Optional.

 Mesh Root: Optional, see Root.

 Earth Quack: Required, see Earth Shock.

 Ice Bolt: Required.

 Mana Drain: Dont take it.

 Snow Wind: Required, Attacks enemies around the target.

 Invisible: Required, Makes you Invisible, Optional after Crystal Invisible.

 Frozen Spear: Required.

 Mana Drought: Dont take it.

 Blizzard: Required, see Snow Wind.

 Crystal Invisible: Required, See invisible.

 Fire Bolt: Required.

 Fire Trap: Optional, Creates a trap the injurs the passing enemies.

 Fire Blow: Required, Usefull against party monsters and giants.

 Detect: Dont take it.

 Meteor: Required.

 Lava Trap: Optional, see Fire Trap.

 Salamander Blow: Required, see Fire Blow.

 Sprawl Detect: Dont take it.

 Lightning Bolt: Optional.

 Lightning Shock: See Root.

 Charged Wind: Required, Hits enemies 6 times and knock them back.

 Teleport: Required, Teleports you from one place to another.

 Chain Lightning: Optional

 Lightning Impact: see Root.

 Arial Teleport: Reqiured, see teleport.

 Charged Squall: Required, see Charged Wind.
Cleric Skills:

 Heavenly Rage: Optional.

 Trial Cross: Optional, Attacking Skill.

 Healing: Required.

 Reverse: Required, Ressurects a dead body.

 Inocent: Optional, Reduces Effect of bad status exept faint and freeze.

 Justice Cross: Optional, Attacking Skill.

 Healing Breath: Required.

 Grand Reverse: Required, see Reverse.

 Integrity: Optional, see Inocent.

 Faith: Required, Increases HP healing and decreases mana consumption.

 Over Healing: Optional, attacking skill.

 Glut healing: Optional, Attacking Skill.

 Group Healing: Required, heals party members.

 Healing Division: Required.

 Healing Cycle: Required, Restores the targests HP little by little for a fixed amount of time.

 Group Healing Breath: Required, see Group Healing.

 Healing Favor: Required.

 Healing Orbit: Required, see Healing Cycle, but for yourself and party members.

 Bless Spell: Required.

 Recovery: Required.

 Recovery Division: Required.

 Group Recovery: Optional.

 Holy Recovery: Required.

 Holy Recovery Division: Required.

 Holy Group Recovery: Optional.

 Group Reverse: Optional, Ressurrects your party members.

 Reverse Oblation: Dont take it.

 Holy Group Rebirth: Optional, see group reverse.

 Rebirth Immolation: Dont take it.

 Charity: Take it if you have a light armor, it increases the effect of all Blessing Spells.

 Glory Armor:  Take it if you have a light armor. Increases Phy. defence.

 Favor Armor: Take it if you have a light armor. Increases Mag. defence.

 Offering: Optional, attacking skill.

 Pure Offering: Optional, attacking skill.

 Holy Word: Required, protects party members from bad status.

 Heaven Flash: Optional, Stuns enemies.

 Holy spell: Required, See Holy word.

 Heaven Glare: Optional, See heaven Flash.

 Force Blessing: Required

 Mental Blessing: Required

 Body Blessing: Required

 Soul blessing: Required 

 Force Deity: Required

 Mental Deity: Required

 Body Deity: Required

 Soul Deity: Required
4-Grinding
From level 1-10 grind on mobs your own level
then from 10-20 1 level above you.
20-90 2-3 levels above you.
Woah, that was tough, hope its usefull.