The purpose of this spec is for solo/group questing survivability and support healing in dungeons. It can do respectable DPS with Lightning Blade active but it is not a top DPS spec.
Level 50: http://rift.magelo.com/en/soultree#FgGi8/SkoGyBplilh0/G
Level 60: http://rift.magelo.com/en/soultree#FgGi8/SkiGallkBkg/G4
As you level, continue filling in the extra damage boosts in Harbinger.
You can also point into Stormcaller instead of Archon for slightly higher AoE damage and Forked Lightning to use for Eldritch Procs. This is only worthwhile for groups of 5+ enemies.
Use Lifegiving Veil always. Synthesis is only taken in order to get Nature’s Touch, you don’t have any other spells to take advantage of Lifebound Veil properly.
Blades: Use Lightning Blade for maximum DPS. Use Reaper’s Blade for survivability. Luminous Weapon gives you better self-healing but much lower DPS than Reaper’s Blade, it is mostly useful before you get to level 41.
Don’t forget Eldritch Armor.
Keep up Searing Vitality for a nice Endurance buff.
#show Vorpal Slash suppressmacrofailures cast [notactive] Charged Blade cast Vorpal Slash cast Storm's Fury cast Storm Slash cast Vile Spores cast Ruin cast Withering Vine cast Blazing Light cast Vengeful Shock
(At 54 Harbinger, replace Storm Slash with Rending Slash)
Alternate ST – less DPS, more healing, use with Entropic Veil:
#show Piercing Beam suppressmacrofailures cast Piercing Beam cast Vorpal Slash cast Ruin cast Storm's Fury cast Storm Slash cast Vile Spores cast Withering Vine cast Blazing Light cast Vengeful Shock
Eldritch Proc – hit only once:
#show Nature's Touch suppressmacrofailures cast Nature's Touch cast Vile Spores
#show Lucent Slash suppressmacrofailures cast [notactive] Charged Blade cast Lucent Slash cast Vengeful Shock
#show Bloom suppressmacrofailures cast @self Bloom cast Conditioned Response cast Essence of Wind cast Planar Shield cast Break Free
Note: Essence of Wind is not available until 44 Harbinger
#show Bloom suppressmacrofailures cast @mouseoverui Bloom
Separate on bar (some of these are not available until higher in Harbinger):
Piercing Beam – if managed separately
Distracting Slash – Interrupt
Blade Rush – ST charge
Phase Step – AoE teleport
Planar Retreat – backwards teleport
Blademark – If you are fighting two enemies, put this on one and ST DPS the other
Phantom Blades – Causes your melee attacks to become ranged
Using the spec
To open with, first apply Radiant Spores, then you can either charge in directly, apply Glaring Fetters to snare the enemy and damage them as they run to you, or apply Withering Vine/Blazing Light.
The first priority in melee range is to apply the Piercing Beam debuff. After that use the ST macro. When you get an Eldritch proc, use the Eldritch macro once to use either Nature’s Touch or Vile Spores (this is the highest priority). Do not spam the macro or you will begin hard-casting Vile Spores after the 0.5s GCD. If this is an issue you can use Nature’s Touch and Vile Spores separately on the bar.
Keep up Withering Vine for extra damage and healing, and in an extended fight you can keep up Blazing Light as well, refreshing it with Lucent Slash. Make sure to keep Radiant Spores up when it drops if you need the healing. When you are high enough level for Tempest Winds, you can use it for a bit of extra damage. Make sure you let it channel the full 3 seconds since there is a burst of damage when it finishes.
In AoE use Phase Step as a gap closer and also decent damage, note that you can continue to use other abilities while Phase Step is still teleporting you around. Otherwise use Lucent Slash. Continue to use Eldritch Armor procs on Nature’s Touch and Vile Spores. Also use Vorpal Slash whenever it’s up for additional healing. Make sure to keep up Radiant Spores up.
The ST and AoE macros will automatically turn on Charged Blade when you have enough charge, which is a damage boost to Nature’s Touch/Vile Spores as well even though they don’t consume charge. If you are using Eldritch procs whenever they happen then you will have no problem maintaining charge with Charged Blade on. Alternatively you can take out Charged Blade from the macros and maintain Entropic Veil manually if you need additional healing (Charged Blade will not increase your healing).
In a group situation (where you do not need the survivability) use Reaper’s Blade if enemies are dying at least every 15 seconds, and use Lightning Blade when they aren’t (boss fights). Remember that you can use Bloom to help spot-heal others. Entropic Veil is also useful to help your group healing.
For additional healing you can use the alternative ST macro to use Piercing Beam and Ruin on cooldown, as they are Life damage attacks so they will heal more than your Air slashes. In a group you can also do a lot of healing by simply spamming Vile Spores or even Withering Vine, but you won’t get any Eldritch Armor procs for Nature’s Touch this way, and you won’t do much DPS.