I've been asked quite a few times to make an Enhance guide on stream so hopefully this can help out! This guide is written mainly for players new to playing enhance in arena / PvP.
What changed about Enhance in 6.0.3 for PvP?
Enhance has changed so much in WoD. Some major points:
1.) We lost our burst. Ascendance does not really "burst" that much anymore.
2.) Our overall damage is much lower.
3.) Elemental Blast hits lower than lightning bolt unless you Unleash it.
4.) We lost Spiritwalker's Grace.
5.) Our mana pool for healing and purging is overall increased.
6.) You can no longer Tremor while you are feared.
7.) Echo of the Elements works on Lava Lash and Stormstrike.
There are tons of other changes too, but the biggest thing is our gameplay. In Mists we were a burst oriented spec, now we are brought into arenas mainly for our utility and purges.
Above are the general talents I use in arena. Some of them should be swapped depending on what comp you are playing, and what you are playing against.
Highly Recommended: Nature's Guardian
Nature's Guardian provides the best defensive boost for Enhance. Astral shift isn't bad, but the cooldown is too long for how long it lasts. Stone Bulwark is also a long CD and totem can be killed.
Recommended: Windwalk Totem
Any 3 of these talents are viable. What is best will depend on many factors such as your play-style, the composition you're running, and what you're fighting against. Windwalk Totem is my general recommendation because Enhance suffers from mobility. Nearly any team you see in arena will slow or snare you in someway. Windwalk Totem is really nice for this situation. Windwalk Totem also helps a Beastmaster Hunter's stampede.Earthgrab is nice when you fight compositions that really need you to snare. An example is a death knight team without a freedom.Frozen Power has a similar logic to Earthgrab. It's also really good when you play with a druid to Frozen Power someone into a Solar Beam.
Recommended: Totemic Projection or Call of the Elements
Call of the Elements is nice because it allows you to use double tremor and double freedom. I highly recommend Call of the Elements against any Priest or Warlock teams, and even Hunter + Warrior (Wyvern Sting + Warrior Fear). Totemic Projection is amazing to make your Capacitor Totem truly useful.
Recommended: Echo of the Elements
Echo of the Elements lets you go almost "rotationless." You can pretty much hit Stormstrike / Lava Lash as much as you want when you account for the fact that you will be purging a ton in arena. Echo of the Elements procs extremely often especially when you get hit (it works on lightning shield.) Since NS no longer works with Hex this is by far the best talent imo.
Elemental Mastery is good for compositions that really rely on burst to win. However, it's purgable, and in the current WoD meta you do not want to use this against a ton of teams.
Recommended: Ancestral Guidance
Ancestral Guidance helps a ton with healing burst. Healing Stream talent isn't bad either if you're against a Warlock or Moonkin.
Recommended: Unleashed Fury
This entire tier is bad honestly, there really isn't a good talent here. This seems to give us the most on-demand damage, but it's closely followed by Elemental Blast. You can honestly pick any talent in this tree and you will hardly noticie the difference except for Primal. Primal would be the best talent if your opponents don't kill your totem that has ~26K HP (1-2 hits).
Recommended: Elemental Fusion or Liquid Magma
Another relatively useless tier. Elemental Fusion is the best if you can't use Liquid Magma (it breaks CCs). Otherwise, Liquid Magma provides the most damage. Storm Elemental is really only good versus teams that has no knowledge of the fact they can just kill your totem in one to two hits.
Similar to talents Glyphs should be adjusted to what you play and what you play against. In general I keep Lightning Shield Glyph and Frostbrand Glyph as mandatory. The last one I swap out a lot.
Prime Glyphs: Lightning Shield - 10% damage reduction most of the time, incredibly useful for a squishy class like Enhance. Frostbrand Glyph - Applies a slow for you automatically, incredibly useful for a melee. Purge - Useful for really saving some of your globals, but if you get unlucky you can be stopping yourself from purging useful buffs. Use when you are not the only purge / dispeller on your team. Purging - Extremely useful for any teams you plan to purge spam. It allows you to heal a ton or use lightning bolts much more often. Capacitor - Useful for teams where you can keep Totemic Projection and you are afraid they may snipe your 5 second charge time totem. Hex - Reduces your hex cooldown by 10 seconds. Extremely effective against teams with no curse dispel or only one curse dispeller. Spirit Walk - Reduces your Spirit Walk CD by 25%. Nice for teams where you need to keep kiting or if you get heavily kited. Ghost Wolf - Makes you run at 100% even when you are slowed when using Ghost Wolf. Similar logic to Spirit Walk glyph but in a more consistent manner.
Lava lash for teams where your Flame Shock dot can break CCs.
Gems / Enchants / Stats Priorities for Stats:
Multistrike and Crit are terrible since they scale less in PvP. The best thing to do for gearing is try to avoid these 2 stats as much as possible.
Versatility on everything. Haste enchant on weapons.
What rotation do you use in PvP?
There is no "specific" rotation in PvP. For Enhance Shamans it is exceptionally strange due to how important purging is and Echo proccing all the time.
Generally when you're not purging you want to use your 4-5 Maelstrom procs ASAP. Outside of that you want to use Stormstrike and Lava Lash. Keep Flame Shock up, keep Searing Totem or Fire Pet totem up. Unleash is a button you hit when you get kited or you have nothing else to do.
Macros / Keybindings?
Macros are largely personal preference. I prefer using @party1 and @arena1 kind of macros. Some players do it differently. Do what works for you!
Macros I use, and the keybinding I use with it:
For my shaman:
` = Start Attack with Unleash Elements /startattack /cast Unleash Elements
Ctrl + A = Focus Windshear
/cast [target=focus] Wind Shear
Ctrl + S = Focus Purge
/cast [target=focus] Purge
Alt + X = Focus Hex
/cast [target=focus] Hex
As said with almost everything, Macros have a lot to do with personal preference. You can also use modifiers for different skills in your macros. Use these only as a general guideline and form your own macros!
Stormstrike before you Ascendance in general. The Stormstrike in Ascendance does not share CD with it.
Make sure to Unleash before Elemental Blast or Lightning Bolt if you're using Unleashed Fury or Elemental Blast.
Keep in mind in WoD now we do not exactly do the most damage in the world. Pressure from Enhance is a stacking effect from purging, and somewhat decent consistent damage and a constant low CD ranged interrupt + other utilities. Don't be too discouraged when the damage on the scoreboard shows you're lower than everyone else! We also have probably one of the best constant heals in the game, so make sure you're using those procs.
you let a mage cast 4 frostbolts on you (+15% damage buff), your hunter broke his incanter's ward and then didn't dispel the buff (+30%) damage, mage popped pvp trinket (+~12% damage) and the priest had enough unpressured time to build up 3 orbs.
They literally stacked every damage increasing ability in the game, right after your hunter had used his scatter for trap, and silencing shot offensively to prevent the MD. Your healer was across the map and your teammates had no peels up, which presumably they communicated to you on comms about. yeah you probably should have cloaked.
Mage damage is retarded right now, it's fucking wayyyyyyy too high after the frostbolt buff, and NT needs the same nerf that frost bomb got last night. But you linked a game where you played pretty much as badly as you could, and you didn't match any cooldowns... as evidence that cooldown matching doesn't help? What exactly is your point?