*Fire Arms and Dragonology is a must at all times
Blast Arms - Fire Flower - (Fireball - Firebolt - Firebolt - repeat)
*Use Fire Flower whenever it fades and always recast Fire Arms after Blast Arms
DOT (Damage Over Time) damage (caused by Fireball, Fire Arms, Fire Flower) is where most of its damage comes from. However, DOT damage will be overwritten by any wizard who uses the same skill. When there are more than one wizard in the party, even the assassin will out-deal the Ragnarok Online 2 Wizard, putting the Wizard just above the tank characters. (there should only be 1 wizard per party)
ie. When going against a boss, and the DOT effects of Fire Flower, Fireball, Fire Arms are damaging the boss, whoever uses Fire Flower will overwrite the Fire Flower DOT damage. (same with Fire Arms and Fireball)
Cold Bolt 1
Frost Diver 1
Water Arms 1
Frost Nova 1
Ice Wall 5(M)
Lightning Bolt 1
Wind Arms 1
Fire Bolt 5(M)
Fire Ball 3(M)
Fire Bolt Mastery 3(M)
Fire Arms 5(M)
Blast Arms 5(M)
Fire Flower 5(M)
Inferno 1* (Either Meteor Storm or Inferno)
Fire Explosion 0
Meteor Storm 1* (Either Meteor Storm or Inferno)
For those that might have questions about why I didn't level skills that you might think are useful, here's a quick tip on why not.
Cold Bolt - This skill is used with lightning bolt and frost diver in the early levels, but it is outclassed by the fire bolt due to stacking of Fire Arms and Dragonology, even without the help of pyromaniac.
Frost Diver - This is also a skill used mainly in the beginning. However, being unable to freeze bosses, it is usually thrown away.
Water Arms - Due to DOT damage, water arms is not used. Additionally, 10% damage reduction is unnoticeable for wizards.
Frost Nova - Truthfully, this is a very useful skill, however it preforms very well even at level 1.
Ice Wall - 3 minutes is a long time to wait, especially in battle. However, 3 minutes is enough to use twice on a single boss. Anything other than 3 minutes is too long, and you might as well invest 1 in Ice Wall at that point. However, having no true survival skills other than this, it is necessary for you to invest 5 points in this skill.
Lightning Bolt - It is also like the cold bolt. It is very soon outclassed.
Firebolt to Dragonology should be self explanatory.
Pyromaniac - This is a skill often overlooked. It takes about 7-8 attacks to reach 100, which at that point, gives you a 10% cast boost. This might not seem to be a lot, and people tend to use fire explosion the second it reaches 100. Using this buff allows fast recasting of fire bolts, which in the end pays off more than fire explosion. (the users of this skill commented that "it's a skill that can only be felt by those who use it.")
Fire Explosion - This is (used to be) a VERY debated skill for all people. This does around 3000-3500 damage without critical hits and is seen as the wizards ultimate attack. However, even if pyromaniac was leveled up to 5 and Fire Explosion was too and Fire Explosion was used just before the 30 seconds were over every time, during the time Fire Explosion is being used, 2 fire bolts can be fired. Now the problem with Fire Explosion lies here. Each fire bolt at level 50 does around 1200 - 1500 damage with the right equipment. A single critical hit will do 2400-3000. Although the Fire Explosion does 3000-3500 damage, it is spread into multiple shots doing 600-700 damage. Unless all 5 hits of Fire Explosion ended up as critical hits (which VERY rarely happens) it does not outshine the fire bolt. As a matter of fact, even if one of the two fire bolts were to be a critical hit, it would outshine the fire explosion. Additionally while this is happening, pyromaniac would be filling up which is why many people invest points in other skills.
Inferno vs Meteor Storm
Inferno is a good skill, because it gives all the mobs a fire flower effect. Even at level 1, it gives the fire flower effect of the level of your fire flower. On the other hand, Meteor Storm is a skill that hits a targeted area, but is heavily affected by lag and also takes longer than fire flower. In the end, you do just about as much damage with either one. (even without lag) You should just pick one and only one because you're not there to take out only mobs when in raid dungeons. (gathering mobs is harder than throwing fire bolts one by one)
*It's also the sorcerers job to attack mobs with Lord of Vermilion, which also does double damage when the enemy is encased in ice, so hit fire flower, use frost nova, and get the hell away with teleport and let the sorcerers do their job. (And yell at them if they don't. )