Been trying to put in the work on Enhance with a goofy 100% mastery build (172 I think it is) trying to capitalize on Forceful Winds instead of Lashing Flames. Just general info, it's not terrible, but its not quite up to par. To get there you have to make too many sacrifices like only having 10% Crit, 15% Haste 0% Verse and lower agility for giving up BC gear. Sometimes you do just get all the stacks and go ham, but not enough going on to make it really click. Even with 100% you get a 4% increase WF chance
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And 100% on elemental damage also seems like a lot, but its 100% of your completely diminished stats (primary and secondary), etc. that you gave up to get to 100% mastery... so again, not that great.
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And also on the DK nonsense issue as far as Mastery goes
With comparable sets on:
Spaceblade has 176 str (crow wing) / 8 crit / 31 haste / 68 mastery
Naxx has 169 str (lasher) / 5 crit / 26 haste / 19 mastery / 33 verse (Naxx is missing 3 sockets neck/rings which would only make the below numbers better)
Howling Blast - Naxx(564) Space(614)
Frost Strike - Naxx(168) Space(183)
Obliterate - Naxx(249) Space(192)
Death Strike - Naxx(171) Space(132)
Remorless Winter - Naxx(178) Space(194)
Inexorable Assault - Naxx(73) Space(79)
Festering Strike - Naxx(312) Space(240)
Clawing Shadows - Naxx(144) Space (153)
Festering Wound - Naxx (72) Space (73)
Death Coil - Naxx(157) Space (167)
Death Strike - Naxx(124) Space (96)
Outbreak - Naxx (374 - 75 erupt) Space (374 - 79 erupt)
As you can see the numbers are pretty close and verse also makes your Obliterate/Death Strike/Scourge Strike just that much better. And you get to keep 33% Verse. Just too much misinformation stating that Mastery is SO MUCH BETTER... it is not.
The forums just suffer from Echo chamber... one guy copies a guy, copies a guy, copies a guy, then without any other testing that becomes the best build.
And as I stated before, Naxx is missing 3 slots, plus Lasher also scales with verse. I could give Spaceblade the Runeblade, but that is basically just a little less damage for comparison sake... and if they both had the Runeblade for comparison, Naxx would just get more damage in the comparison. Also, when you scale mastery down in BG, its even worse for Spaceblade.
Do your own research please.