Level 1-
Pleasing Sacrifice (W): Using Sacrificial Lamb grants you 45 mana.
Ascendant's Eyes (Trait): Astral Projections now see 60% farther.
Graceful Vampirism (Q): Carrion Beauties restores health to you equal to 20% of the damage it deals.
Level 4-
The Master's Hand (E): The Master's Mark now gains an additional 1 damage per kill (this 1 damage is also applied retroactively to kills obtained previously), and it gains an additional 75 damage upon finishing the quest.
The Master's Will (E): Upon finishing the quest attached to The Master's Mark, the cooldown of The Master's Mark is reduced by 3 seconds and its mana cost is reduced by 25.
The Master's Gift (E): You gain 5% Ability Power for 4 seconds for every enemy Hero you hit with The Master's Mark, stacking up to 5 times.
The Master's Scorn (E): Upon finishing the quest attached to The Master's Mark, the ability reduces the Armor of affected enemies by 10 for 3 seconds.
Level 7-
Burnt Offering (W): Sacrificial Lamb grants you 10% Ability Power for 5 seconds upon usage.
Growing Swarm (Q): The next cast of Carrion Beauties deals 5% additional damage for every target it hits, stacking up to 10 times.
Astral Presence (Trait): The Ability Power boost from being within range of your Astral Projection is increased to 20%.
Level 10-
Sorceress Heart (R1)
The Master's Plan (R2)
Level 13-
Astral Winds (Trait): You gain 15% movement speed while you are within range of your Astral Projection.
Diseased Beauties (Q): Carrion Beauties now deals an additional 120(+4%) damage over 4 seconds to all affected targets.
Soul Tether (Trait/Active): Activate to teleport to a nearby Astral Projection, instantly destroying it. 50 second cooldown.
Level 16-
Split Soul (Trait): You can now have up to 5 Astral Projections out at once.
Devouring Swarm (Q): Carrion Beauties now instantly kills all allied minions in its path and gains 7% damage for every one it kills. This effect can stack indefinitely, and only applies to the cast of Carrion Beauties in which the effect was gained. Minions killed in this manner grant half the normal experience to the enemy team, if any enemies are within range.
Witch's Curse (W): Sacrificial Lamb can be cast on an enemy Hero to lower their Basic Attack Speed by 35% for 4 seconds instead of killing an allied minion, and it still grants you health when used in this manner.
Level 20-
Spatial Crush (R1)- You gain an additional charge of Sorceress Heart and its range is increased by 30%.
Tools of the Master (R2)- Your nearby allies gain 40% of the Ability Power bonus that you gain from The Master's Plan.
Rewind (Active)
Ephemeral Projections (Trait)- You can cast your Basic Abilities at an active Astral Projection to make your next cast of that Basic Ability more powerful and have a different effect. This destroys the Astral Projection in the process.
Q: Carrion Beauties applies a damage field tethered to all enemies it hits, dealing 30(+4%) damage per second to all enemies near the affected targets for 5 seconds.
W: Sacrificial Lamb now empowers the target minion instead of killing it, making it take 50% less damage from non-heroic sources, increasing its health by 300%, and increasing its damage by 50%, on top of its original effects.
E: The Master's Mark now gains all of its talent effects for one cast and its radius is 30% larger.
Heroes of the Storm Build Guides
Swarm build:
Graceful Vampirism, The Master's Gift, Growing Swarm, The Master's Plan, Diseased Beauties, Devouring Swarm (Which I think shouldn't kill the minions but set them to 1 because deneying xp to a team that is behind is devastating to them, or it could just give xp if an enemy hero is in the xp range) Rewind
As for the builds, I'll put those up shortly!
The W is specially interesting. It's not like denying in DotA, but it's close and would add an interesting mechanic without delving into "gameplay depth" problems.
Awesome!
Edit: A talent build
Ascendant's Eyes, The Master's Scorn, Burnt Offering, The Master's Plan, Astral Winds or Soul Tether, Split Soul, Rewind.
Utility and vulnerability for days.