- Frostbrand Weapon damage has been increased. (From 442 to 530 damage for Rank 9, from 386 to 463 for Rank 8, etc ...)
- Frozen Power now Increases the damage done by your Lightning Bolt, Chain Lightning, Lava Lash and Shock spells by 5/10% on targets afflicted by your Frostbrand Attack effect
- Flurry now Increases your attack speed by 5/10/15/20/25% for your next 3 swings after dealing a critical strike. (Down from 10/15/20/25/30%)
The flurry change is a nerf. I don't know why it was needed. Are enh shamans really doing too much damage due to flurry? It's a small nerf, true enough, but it's a nerf nonetheless.
Combined with earlier shaman changes, what we're seeing here is an extended effort across several PTR builds to move PvP enhancement into a Frostbrand MH style, with frostbrand made more attractive due to Frozen Power and its various buffs. I don't think the DPS will be equal to Windfury (even with the glyph changes, you'll probably see more DPS with WF than Frostbrand on your MH unless the Frozen Power increase is more significant than it currently appears) but in PvP, the Frostbrand snare combined with more DPS for shocks, Maelstrom procs and Lava Lash might well prove compelling.