Meta Gem - Skyfire

[TeaLeaf]

I am looking to use a meta gem so took a look at the two main Skyfire Diamond meta gems that a mage might use and crunched some numbers.

     
Destructive Skyfire Diamond
+14 Spell Crit Rating and 1% Spell Reflect

Mystical Skyfire Diamond
5% on spellcast - next spell cast in half time

By my calcs the Destructive SKyfire Diamond would increase my damage by about 0.36% with an additional +1% spell reflect althought he value of this is difficult to quantify.

The Mystical Skyfire Diamond offers a 2.5% increase in damage.

Both cost around about the same, so I am trying to figure out why Blizzard made the disparity so huge as to my mind nobody would ever want to go for the Destructive Skyfire given these results.

Did I miss something?

TL.

[spiritus]

i would want the destructive on my lock for pvp!! so uber  i would guess :g:

[TeaLeaf]

Just out of interest, what do you see as the benefits compared to the Mystical?

TL.

[Nefertem]

When its '5% on spellcast' does that mean 5% less casting time?

[Carr0t]

No, that means that on casting a spell you have a 5% chance for a buff to proc which causes your next spell to be cast in 1/2 it's normal casting time.

[Nefertem]

Ah yes of course.. I read it as two different abilities :doh:

But with a 5% chance of proccing it doesn't happen that often does it? sounds like a lot of +spelldmg for those 5%?

[spiritus]

and if it procks it also depends on the spell hitting the mob.
but i guess that 5% gem is nice fro pve stuff and the refleckt is good for pvp.

[Gorion]

the proc rate is a bit dull.. 5% aint much imo so ide go for the crit and spell reflect

[spiritus]

so G choses his gems/enchant trough the dull order from 1 to 10 :crazy:

[Gorion]

what do you mean with that :S
 
i sortof reason in a diff way, i use what i like mostly. everyone made fun of me and called me nuts when i put lifesteal on tf (esp the righteous ppl), but after having a paste of the healing meters ide call them the idiots..

[spiritus]

hehe mr crazy
just bored at work

[TeaLeaf]

By my calcs the Destructive SKyfire Diamond would increase my damage by about 0.36% with an additional +1% spell reflect althought he value of this is difficult to quantify.

The Mystical Skyfire Diamond offers a 2.5% increase in damage.

the proc rate is a bit dull.. 5% aint much imo so ide go for the crit and spell reflect

Trying to figure out how you think the proc rate is dull.  The choice is between two items, one with a 5% proc chance and the other with a 0.67% proc chance.

TL.

[Sandrion]

Maybe the intent of the gems is different?
 
Skyfire might be nice for caster tanks like pallies or even locks / shadow priests in specific encounters.

[Gorion]

Trying to figure out how you think the proc rate is dull. The choice is between two items, one with a 5% proc chance and the other with a 0.67% proc chance.
 
TL.

you didnt mention a proc on the destructive gem..
 
constant 0.6% crit and 1% spell reflect > a 5% proc that gives 50% haste on your next spell
 
imo

[Sandrion]

constant 0.6% crit and 1% spell reflect > a 5% proc that gives 50% haste on your next spell

The 5% * 50% cast time nets you a DPS increase of 2.5%.
(1 - ((3 * 19 + 1.5) / (3 * 20))) * 100% = 2.5%.
This well outweighs the crit chance and the spell reflect on the other gem. It's hard to quantify how much the spell reflect will increase your DPS, but it won't be much; somewhere between nothing and very little.
 
Now that I think of it, it can be a nice gem for PvP. 1% chance that an hostile caster owns himself :norty: .