The Shaman tree is fantastic in that there are very few required DPS throughput talents, leaving us with many points to spend on utility for any given scenario. We will basically always pick up Frost Shock, Flurry, Lava Burst, Fire and Ice, Nature’s Fury, and Improved Lightning Bolt for throughput.
Other high-priority talents are Astral Shift, Wind Shear, Earth Elemental, Spirit Walk/Gust of Wind, Elemental Warding, and Ancestral Guidance, which all provide very significant defensive utility or mobility.
As of right now, there are two different viable talent builds for Enhancement.
Single Target Fire
The fire build focuses on improving Lava Lash through Hot Hand and Elemental Blast through Elemental Spirits while having strong funnel and cleave potential via Primordial Wave, Splintered Elements, Ashen Catalyst and Lashing Flames. This build provides strong sustained damage, but it lacks burst potential unless there are adds to make good use of Splintered Elements.
Single Target Physical
The physical build, on the other hand, focuses on improving Stormstrike and Windfury Weapon and provides strong burst windows through overlapping Doom Winds, Feral Spirit, and Ascendance. Ascendance is a massively strong cooldown now that it got support talents in Static Accumulation and Thorim’s Invocation, which synergizes heavily with Legacy of the Frost Witch. If a reliable burst is not needed, you can optionally talent into Deeply Rooted Elements instead, which because of its random nature, has the potential for lucky pulls with very long Ascendance uptime. It is key not to take Elemental Spirits in this build, as you want your physical damage buffed from the regular wolves.
For Mythic+, using the fire build, simply replace Windfury Totem, Elemental Blast and Storm’s Wrath with Crash Lightning, Crashing Storms and Elemental Assault. This build excels at cleaving and funneling smaller trash pulls. It provides very consistent upfront damage, as you have Primordial Wave for basically every pull.
For Mythic+, using the physical build, simply replace Elemental Blast, one point of Elemental Weapons, and Windfury Totem with Alpha Wolf, Crash Lightning, and Crashing Storms. This build has much higher uncapped burst potential using Doom Winds and Alpha Wolf than the fire build but sacrifices sustained damage and funneling potential to do so.