This build use Ice Shard of the Storm Mastery, one of the best spaming skill in the game after Ternion
What's to expect about this build:

• Cast Squall and hold RMB to Pwn.
  
• Gatling gun level killing power.
  
• Shine with great item, still strong with normal item.
  
• Breeze through normal and early epic.
  
• Kill them before they kill you later on
  
• Super mana hog.
  
• Kinda squishy depends on your item and second mastery.

http://titanquest.wikia.com/wiki/Ice_Shard

• Fire up to 5~6 Shards of awesomeness
  
• Hold RMB and pwn.
  
• DO NOT carry on hit modifier like life leech, reduce hp ...
  
• BURN THROUGH ♥♥♥♥ TON OF MANA.

• Your resist: no point having all below stuff if bosses 1 hit you!
  
• +% Casting Speed item: the skill power increase with CS, try to reach the cap of 300%.
  
• +% Cold damage/ +% Elemental damage: Early on this will give you quite a boost.
  
• +% INT: Later on try to replace +%Cold damage with this, every 50INT give +10% Elemental Damage

• Ice Shard: Your main DPS/RMB (MAX everything in this tree)
  
• Storm Nimbus/ Heart of Frost: MAX HOF and leave it (remember to turn it on)
  
• Squall/ Obscured Visibility: Your main defensive/debuff ability, it's gonna save you from horde of archer and increase your DPS (try to MAX everything before Epic, Squall 1st)
  Note: Squall AOE is a bit bigger than it looks
  
• Storm Surge: 1 point wonder for the 1.5s stuns.
  
• Wisp/ Eye of the Storm:: MAX EoTS, boost your damage heavily WHENEVER IT CAST (you're at the mercy of AI)
  
• Energy Shield: Not really worth your points and you have to recast it everytime.
  
• Spell Breaker/ Spell Shock: Disable enemy's charging/ stuns skills in Epic/ Legendary, better to kill them first before they do it though (OPTIONAL)

• PRE Level 20[www.titancalc.com]: just bump storm tree, ignore secondary mastery.
  2 Mastery / 1 Skill per level.
  Rush and Max Torrent ASAP, 1 point in other skill.

• After Level 20: Time to put skills into secondary masteries, don't really need to rush this
  1 Storm / 1 Mastery / 1 Secondary Mastery Skill
  Max Squall before Act 4 / Epic for safety reason

A MAXED STORM TREE[www.titancalc.com] <<<<

• HEALTH: put every bonus points from quest into this, around 20, help with the squishiness (OPTIONAL).
  
• ENERGY: PLS NO.
  
• STR: NONE, UNLESS you're a thane with 2 Persephone's Caress then 440.
  
• DEX: you need maximum 173 dex, check with your masteries bonus, increase 3 INT : 1 DEX will do.
  
• INT: The rest goes here, every 50 point increase your damage by 10% (from damage formula, every int counts).

You only need to increase secondary mastery after level 20

• Only for Dual Wielding the best axe in the game for icesharder, other skill are mostly useless.
  
• It's worth the STR

DO NOT go this route if you dont have the axes yet

• Persephone's Caress
  7% Chance for one of the following:
  8 second(s) of Mind Control
  2 ~ 3 second(s) of Stun
  +100% Cold Damage
  +100% Frostburn Damage
  70% Cold Resistance
  +110 Health
  +36 Dexterity
  +50.0 Health Regeneration per second
  +4% Absorption of Spell Energy

WARFARE SKILL RECOMEND[www.titancalc.com] <<<< LINK
More in Battle Standard if you have points to spare

• Plague and Heart of Oak complement this build greatly, wolves are optional.
  
• Fix Squishiness problem
  
• Tedious to cast Plague and Squall everytime

NATURE SKILL RECOMEND[www.titancalc.com] <<<< LINK
Wolves if you have points to spare, but they're not gonna do much unless you heavily invest in them

• Squishiest of them all
  
• Doen't boost Iceshard damage
  
• Able to Respec to Ternion if you find this build lacking
  
• Strong, Durable Lichie King that spam -% Health skill, great boss killer (CAN'T HOLD AGGRO)

SPIRIT SKILL RECOMEND[www.titancalc.com] <<<<LINK
Death chill tree: doesn't do anything for your damage, just to save you you from charging melee (MAX THIS LAST)
Dark Covenant tree: Give you a bit ohmm when killing bosses, really risky though (SKIP if you dont like)

• Trance of Awesomeness that boost your Regen and Damage reduction
  
• Boost survivability a bit
  
• More crowd control (For the charger)
  
• Trance of Wrath (OPTIONAL)

DREAM SKILL RECOMEND[www.titancalc.com]
Trance of Convalesence: Boost regen and DR heavily
Trance of Wrath: you could go this route for the Resist reduction, but it put you in melee range
Lucid Dream: Boost to total speed and defensive stat is nice.
Summon Nightmare: No one is gonna target this litte guy, we get this just for Hypno Gaze
Distort Reality: Great CC skill.
Not much synergy, just dont

• +% Casting Speed (CS): increase your DPS
  
• -% Energy Cost EC: Reduce Energy usage, stop the blue addiction.
  
• +% Cold/ ELE Damage: Early on> %INT.
  
• +% INT: Later on > %Cold.
  
• + Skill item: Straightly increase damage per cast.
  
• Resist item: no need for explaination.
  
• + Projectiles Speed: nice to have, optional

• 2 Cartouche Rings: Farm A2 Telkine - Give 18% ELE, 50% CS, 10% EC, best in slot early on
  
• Green Staff +%Cold: Before you max Torrent/ have Cartouche, Shards spaming doesn't worth it, for normal attack.
  
• Green Spellbound Amulet: 15% ELE -15% EC
  
• Scepter of the Liche King + Chill of Tartarus 20% Cold bonus: -25% EC; Farm Abyssal Liche before A3 Telkine or A4 in some Tomb (unless you're lucky, not worth the time to farm)
  
• Charm of the Magi Armlet: 50% CS, farm those satyr mages.
  
• Green Armor + Golden Fleece for ez -21%EC, or any good armor you found.
  
• Green ... of the Pegasus Legs + Hermes's Sandal: that give 19%ELE 15% Run speed 19% ELE Resist
  
• Touch of the Fool Artifact: +30%CS -15% EC.

Suggest only

• Heads: any good one you find, if it's green, socket with +1/2 Skill Shard of Erebus or 30% INT Cunning of Odysseus
  
• Staff:
  
  • Dual Wield Persephone's Caress: THANE only, +200% Cold Damage 100HP/s, it's WORTH every STR spends.
    
  • Scepter of the Liche King + Chill of Tartarus 20% Cold bonus: -25% EC; Farm Abyssal Liche before A3 Telkine or A4 in some Tomb, Normal version for easier time.
    
  • Fingerbone of Boreas: BIS if you can reach 300% CS.
    
  • Geras' Walking Stick: Great Resist for bossing, -20% Run Speed make it annoying for normal uses
    
  • Staff of the Cosmos: Inferior to Boreas in damage but give +100% CS -30%EC.
• Rings:
  
  • Cartouche if you still need the %CS and %EC
    
  • whatever good Epic / Leg you found
    
  • Green rings give huge % INT / socket with resist or 5% INT Code of Hammurabi
• Armlet: good Green one or an Elementalist's Wrap
  
• Amulet: a green Occult's that give 100% CS 10% ELE if you need, or what ever you like
  
• Armor, Artifact, Leg: Idk about this, haven't found any thing great yet

TQ-DB[www.tq-db.net]