Would like help improving Hexcrafter Magus

[Archmage Joda]

So, my group finally started another pathfinder game, this time we'll be playing the Shattered Star adventure path (or whatever it's called, I'm sure I got the name wrong), and I was looking into playing a Hexcrafter Magus, and after a disastrous mock battle to test our characters (the dice really hated me), I would like some input on how to improve my character.

Stat generation rules:
"Focus/Foible" method - you are given an 18 and an 8, the others are roll 4d6, drop lowest

Houserules:
- At levels where stat increases are gained (4th, 8th, and so on), choose two attributes to get increased, rather than 1
- If your hp roll for a given level is below half of your hit die size, then take the half.
- Starting at level 5

Anyway, what I have currently:

Jacob Morgan
Half-Elf Hexcrafter Magus 5

Str 18
Dex 14
Con 16
Int 20
Wis 11
Cha 8

Traits:
- Metamagic Master/Wayang Spellhunter (Metamagic Master is the PFSRD name) (Frostbite)
- Magical Lineage (Shocking Grasp)

Feats:
1: Rime Spell
3: Enforcer
5: Extra Arcana
Bonus: Combat Reflexes

Arcana/Hexes:
3: Flamboyant Arcana
4: Flight Hex
Extra Arcana: Precise Strike

Spells:
1st level:
Shocking Grasp
Frostbite
Enlarge Person
True Strike
Shield
Vanish
Grease
Obscuring Mist
Blade Lash

2nd level:
Glitterdust
Bladed Dash
Mirror Image
Frigid Touch

Yes, I have read Walter's guide to the magus and the hexcrafter guide, but I don't want to completely copy-paste one of those builds, and I do want to be good at control and damage. Thank you in advance.

[Paulicus]

Don't forget all the fun [curse] spells you get, being a hexcrafter!

Brand is a level-0 inquisitor spell, you can use it with spell combat, and no worry about arcane mark issues.

Ill Omen is a fun, no-save 1st level spell that forces rerolls.

For 2nd level, there's Blindness/Deafness, and I think Disfiguring Touch is this level too.

And of course, Bestow Curse at 3rd, which is one of my favorite spells.

There are more, but I forget them at the moment.

[TGMaxMaxer]

Remember that Half Elves can use the Elven FCB for 1/6 arcana, helps a lot.

I like the Mirror Strike spell for surprise rounds/rounds when you have to move at the start of the fight, then you get to spellcombat and debuff multiple enemies on the first round.

Since you do damage to both, you would apply frostbite to both, and get to intimidate both.

Stone Call is a good 2nd level AoE, especially if you have reach and combat reflexes: cast it just in front of you and no save damage and difficult terrain, so you (and friends)get AoO's on anyone coming up to your front line.

[Ruske Bell]

I would switch your charisma and wisdom. Pump up that use magic device.