Mage Hunter Build practicable?

Hi, i plan to use this in a Mage Heavy campaign. Starting Stats below

• Species: Human

• Class: Fighter

• Weapon Mastery: Glaive (Main), Battleaxe, Javelin

• Background: Farmer (Feat: Tough | Skills: Animal Handling, Nature)

• Ability Scores: STR 17 (+3), DEX 10 (+0), CON 16 (+3), INT 10 (+0), WIS 13 (+1), CHA 8 (-1)

• Skills: Athletics, Perception, Arcana

• Feat: Alert (not sure if Lucky is the better choice)

• Fighting Style: Defense

• Equipment: 68 GP, Chain Mail, Glaive, Maul, 10x Javelin, 2x Dagger, Dungeoneer’s Pack, Bullseye Lantern, Healer’s Kit

• HP: 15

Progression is planed like this.

Lvl 3 Battlemaster (Riposte, Precision Strike, Menacing Strike)

Lvl 4 Fey-Touched +1 Wis Spells: Misty Step and Command

Lvl 6 Mage Slayer +1 Str

Lvl 8 ASI +2 Str

Does this make sense at all for a normal progression?

Not sure if taking Fey-Touched early is the right choice. I am also not sure if Sentinel is maybe a better fit as Mage Slayer for what i plan.

Tactics: Are straightforward. Reduce distance as fast as possible and hopefully burst the Spell Caster down fast with attacks. Hopefully i can reach him without Misty Step and can keep the Spell for when it is really needed. 

Off course the other Party members will also do their part, but i wanted to specialize in taking out Spell Casters.

Looks okay at first glance. Of particular note is the good choice in weapon of Glaive because of the Graze mastery, so even if your attack misses, they'll still take damage which forces a concentration check (when applicable).