[Arcane Subtlety] reduces the threat generated by Arcane spells by 20/40%.
[Arcane Focus] increases the chance to hit by 1/2/3% and reduces the mana cost of Arcane spells by 1/2/3%.
[Arcane Concentration] gives you a 2/4/6/8/10% chance of entering a Clearcasting state after any damage spell hits a target. The Clearcasting state reduces the mana cost of your next damaging spell by 100%.
[Torment the Weak] makes your Frostbolt, Fireball, Frostfire Bolt, Pyroblast, Arcane Missiles, Arcane Blast, and Arcane Barrage abilities deal 4/8/12% more damage to snared or slowed targets.
[Focus Magic] increases the target's chance to critically hit with all spells by 3%. When the target critically hits the caster's chance to critically hit with spells is increased by 3% for 10 sec. Cannot be cast on self.
[Presence of Mind], when used together with Arcane Potency. Also required for Arcane Instability and Arcane Power (see below).
[Arcane Mind] increases your total Intellect by 3/6/9/12/15% (which boosts your critical strike chance and Mind Mastery, see below).
[Arcane Potency] increases the critical strike chance of your next damaging spell by 15/30% after gaining Clearcasting or Presence of Mind.
[Arcane Instability] increases your spell damage and critical strike chance by 1/2/3%
[Arcane Power] will, when active, cause your spells to deal 20% more damage while costing 20% more mana to cast. This effect lasts 15 sec.
[Arcane Empowerment] increases the damage of all party and raid members within 100 yds by 1/2/3% (among other effects).
[Mind Mastery] increases spell damage by up to 3/6/9/12/15% of your intellect.
[Spell Power] increases critical strike damage bonus of all spells by 25/50%.
[Impact] gives your damaging spells a 4/7/10% chance to cause the next Fire Blast you cast to stun the target for 2 sec.
[Master of Elements] causes your spell criticals to refund 10/20/30% of their base mana cost.
[Improved Scorch] increases your chance to critically hit with Scorch, Fireball and Frostfire Bolt and your damaging Scorch spells have a 33/66/100% chance to cause your target to be vulnerable to spell damage, increasing spell critical strike chance against that target by 5% and lasts 30 sec.
Fire talents further down in the Fire tree beyond Master of Elements and Improved Scorch are impossible to access due to lack of talent points.