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Comment by 155931

An unfortunate change to the talent, the mana cost reduction is relatively marginal at best and now arcane damage does not get a free 10% extra chance to hit through talents.

Comment by 155931

A 1pt= 1% hit/reduce mana cost talent seems to be fairly standard in the new caster trees, I assume they wanted to normalize things for casters.

Comment by 58274

Does this spell only increase the +Hit of Arcane spells, or all spells?
I ask because Elemental Precision is written like so:

Reduces the mana cost and increases your chance to hit with Frost and Fire spells by 3%.

and Arcane Focus doesn't say:

Reduces the mana cost and increases your chance to hit with Arcane spells by 3%.

So is it just inconsistant/ambiguous tooltip phrasing, or does Arcane Focus actually increase your overall +Hit?

Thanks :)

Comment by 163032

they didnt say "Increases your chance to hit with all spells" and hit rating is still 0 in character window (tested), but who know.. arcane is a verry complicate tallent and the best

Comment by 163032

and where is the source, wiki? they have right always?

Comment by 351416

I'd like to know about this: "Apply Aura: Mod Power Cost (64), Value: -3"
Does it apply that in an additive way to make a spell like Arcane Explosion with it's 22% of base mana cost then cost 19%, or does it apply in a multiplicative way to make it 21.34%? I think it is likely additive the way its effect is worded.

I ask that because of the way the effect is listed above which differs from another like spell Mental Agility which says "Apply Aura: Add % Modifier (14), Value: -10". That one definitely implies a multiplicative calculation.

The values they have are also adding to the mystery. This talent only modifies it by 3% which is almost worthless when multiplicative, but useful while additive.
The 10% of Mental Agility is a better multiplicative bonus. It's not too small to make much of a difference.
Every other mana cost reduction talent I can find has a higher benefit and says "Apply Aura: Add % Modifier" instead of "Apply Aura: Mod Power Cost" like this talent.

I know this talent also increases chance to hit with arcane spells, but this mana cost reduction still seems too small if multiplicative and the wording of its effect makes it seem additive instead.

Comment by Norrinir

Useful talent for non-arcane based PvP builds that take Improved Counterspell (and possibly Torment the Weak). You need to spend 5 points in 1st tier anways, 2 points are for Arcane Subtlety (which is kinda useful when considering important buffs like Ice Barrier, FoF or Brain Freeze).

This talent provides another 3% spell hit for important spells, such as Counterspell or Polymorph. As you rarely use Arcane Missiles or Arcane Blast outside of arcane builds, Arcane Stability is kinda useless.

Comment by 466711

Tested to see the affects of arcane focus on non-arcane spells.
Using the level 83 boss testing dummy, expected miss rate with no talents or hit rating = 17%.
After 500 casts of Ice Lance with 3 points in Arcane Focus and no hit gear, my miss percentage was 17.2%.

Conclusion: The hit bonus from Arcane Focus only affects arcane spells.

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Arcane Focus

Arcane Focus

Talent

Increases your chance to hit and reduces the mana cost of your Arcane spells by 3%.

Spell Details

Duration

n/a

School

Arcane

Mechanic

n/a

Dispel type

n/a

GCD category

n/a

Cost

None

Range

0 yards (Self)

Cast time

Instant

Cooldown

n/a

GCD

0 seconds

Effect #1

Apply Aura: Modifies Hit Chance (16)
Value: 3
PVP Multiplier: 1
Affected Spells:

	Invisibility	Polymorph	Slow Fall
	Remove Curse	Arcane Explosion	Counterspell
	Teleport: Stormwind	Teleport: Ironforge	Teleport: Undercity
	Teleport: Darnassus	Teleport: Thunder Bluff	Teleport: Orgrimmar
	Arcane Explosion	Arcane Explosion	Arcane Explosion
	Portal: Stormwind	Arcane Explosion	Arcane Explosion
Show 41 More
	Portal: Ironforge	Portal: Orgrimmar	Portal: Undercity
	Portal: Darnassus	Portal: Thunder Bluff	Polymorph
	Polymorph	Polymorph	Arcane Explosion
	Arcane Explosion	Polymorph	Polymorph
	Spellsteal	Arcane Blast	Portal: Exodar
	Portal: Silvermoon	Teleport: Exodar	Teleport: Silvermoon
	Teleport: Shattrath	Portal: Shattrath	Teleport: Shattrath
	Portal: Shattrath	Arcane Blast	Arcane Blast
	Arcane Blast	Arcane Explosion	Arcane Explosion
	Teleport: Stonard	Teleport: Theramore	Portal: Theramore
	Portal: Stonard	Teleport: Dalaran	Portal: Dalaran
	Polymorph	Polymorph	Polymorph
	Slow	Arcane Barrage	Arcane Barrage
	Arcane Barrage	Focus Magic

Effect #2

Apply Aura: Mod Mana Cost % (Arcane)
Value: -3%
PVP Multiplier: 1

Flags

Is Ability
Passive spell
Aura is hidden
Cast time is hidden

Arcane Focus

Buff

Spell Details

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