So I saw my ranks go down when Method's mage, Kuznam, rose to the top of every heroic rank as frost. I wanted to understand why he could obliterate my respectable numbers. So I looked at his armory and noticed there was no Icy Veins glyph.
Against all convention, this seems intriguing, not only because you increase the amount of frostbolts, but because the FoF procs will also increase.
So I did some real basic napkin math and this is what I've got.
For Heroic 25M Blade Lord Ta'yak:
Based off Akraen, US-Ysera 2012-12-07 Unbuffed
So I know it's simple math, but even with just this it seems like you're losing so much damage with glyph of icy veins. I'm going to remove the glyph for the next few raids and see how I compare moving forward.
Intellect 16754 Haste 9110 (21.44%) Spell Power 24292
Mastery 2588 (24.63%) Crit 1609 (10.20%)
Spell Hits Avg Crits Avg IV Hits Avg IV Crits Avg
Frostbolt 75.00 47,518.00 14.00 97,374.40 44.00 26,526.50 10.00 56,102.70
Frostfire Bolt 9.00 74,678.90 21.00 157,318.50 1.00 44,469.00 9.00 82,123.40
Ice Lance 12.00 42,349.50 30.00 127,687.90 7.00 25,177.90 19.00 97,454.40
Icy Veins Uptime: 5 22.70%
Damage gained from IV Glyph: 907,930.30
Express the unglyphed scenario with 1/3 of the IV hits & crits being for the full average amount.
Damage lost from IV Glyph: 2,425,866.00
FoF Procs Lost 12% 106 sec NT GCD/12 20% FoF GCD 3.533333333
So roughly 3-4 extra FoF should happen through the course of a fight
Damage lost from slower FB during Icy Veins: 347,147.93
Total Damage Discrepancy: (1,865,083.63)
damage lost by glyphing icy veins