- Recommended Attack Abilities -

Frostbolt
   - A nice early game single auto attack skill, combo with Frost Nova to keep the double damage in effect. Recommended while building up your CDR to around 50%, then start upgrading Arcane Bolt.

   - 1 vs 1: Awesome DPS with bonus control (freeze) effect. At Lvl 10, this skill can also slow down enemies in an area. Recommended for 1 on 1 Boss fights if you need more control effects.

   - Vs. Mobs: Great kill rate because you can quickly reduce their numbers, or prioritize enemies you want to eliminate first. Others are better though once you have nice control skills.

_______________________________________________________

Fireball
   - A nice auto attack skill vs mobs, upgrade then use with Frostbolt early game.
   - "Affects Enemies" means it does additional splash damage or damage over time to monsters around the target.

   - 1 vs 1: Bad, Arcane Bolt and Frostbolt are still better.

   - Vs. Mobs: Awesome vs compressed mobs, and even better if you are lucky enough to pull lots of Meteors at Lvl 10! Combo with Attack Speed skills.
   - Use Eileen's companion skill (Vortex) to compress mobs, then spam Frost Nova to keep them still.

_______________________________________________________

Arcane Bolt
   - Late game auto attack skill. Recommended after reaching Lvl 10, and after getting somewhere near 60% CDR to spam Frost Nova. Frost Nova's mob control will greatly help you use this skill with less worry.

   - 1 vs 1: Awesome DPS because it can dish 6 bolts per cast, even better than Frostbolt when played right. Replaces your Frostbolt late game, but make sure it's at Lvl 10 first.

   - Vs. Mobs: Great but kill rate is a little lower because it's attacks will scatter, and it's only limited to 6 targets per strike. Fireball and Arc Lightning are still better against heavy mobs, when played right.

_______________________________________________________

Arc Lightning
   - A must have late game skill, but upgrade this first to Lvl 10 though to get the Attack Speed effect and to increase it's jump chance.

   - 1 vs 1: Bad even with knock backs.

   - Vs. Mobs: Awesome vs compressed or scattered mobs if your Critical Chance and Critical Damages are high enough. If you do, replace Fireball with this wide ranged mob destroyer.
   - Combo with attack speed like Time Warp and control skills too.

   - Note that it doesn't bounce back to previous targets (tested without companions), and it has 20% damage reduction per bounce, but still, this is an awesome skill vs heavily packed mobs (about 10+ monsters) as long that it keeps chaining and do criticals per attack.

   - If you reached Lvl 10 but you don't have yet enough Crit chance/damage, pair it for now with any of the auto attacks you prefer above. Use against monsters to gain the attack speed bonus then switch to your other auto attack.

   - Note: The 20% damage reduction can't reduce your damage to 0, it can only weaken.

_______________________________________________________

- Recommended Utility Abilities -

Frost Nova
   - Damage is normal, but what we want here is it's massive mob control effect that lasts for 6 seconds! Even better if you have somewhere near 60% CDR to let you spam this whenever needed.
   - Use and upgrade this up to Lvl 10 as soon as possible, combo with Frostbolt early game to boost your attack damages.

   - Use Eileen's companion skill to (Vortex) compress mobs, then use this skill.
   - Note: Frost Nova can be spammed at 50% CDR, but I still recommend to go higher because boss monsters will have lesser freeze time than normal monsters.

_______________________________________________________

Time Warp
   - To greatly increase attack speed and to help you dodge 1 hit kill projectile or charging melee attacks.
   - This is really a handy skill that gives you a better chance to think of what skill combinations are best on your current situation, allows you to properly cast spells, and more.
   - Reach somewhere near 70% CDR to cast this spell more often.
   - Highly recommended for conquering Heroic and Legendary Modes.

_______________________________________________________

Immolate
   - Awesome damages vs heavy mobs, Hits 3 times by default plus burn damages, as long that the targets are within range. I will also consider this as a late game skill, after reaching somewhere near 60% CDR to easily cast Frost Nova, especially Time Warp.

   - Great for amplifying damages. "Affected targets take up to 30% more damage" means while the targets are within this skill's area of effect, all attacks will deal additional 30% damage to them!
   - This is also a nice combo to give extra damages to your Arc Lightning skill, and since it's AoE is so wide at Lvl 10.

   - Challenging to use under Heroic and Legendary Modes due to lesser control skills.

_______________________________________________________

Arcane Deflection
   - Gives a bonus "time slow effect" to help you dodge or deflect back projectile attacks or charging melees. Use this ability if you are having trouble on stages with heavy monsters that can 1 hit kill you.
   - Combo with Time Warp and Lvl 10 Frostbolt for control if you want to use this, also recommended for conquering Heroic and Legendary Modes.

_______________________________________________________

- Recommended Passive Abilities -

Celerity
   - To greatly increase Attack Speed. Equip and upgrade this first before Glass Cannon early game.

_______________________________________________________

Glass Cannon
   - To increase Damage output.
   - The defense decrease can be compensated by high kill rates and mob control skills like Time Warp, Frost Nova and Arcane Deflection.