Celestial Engineer with Core Specializations

Celestial Engineer is indisputably one of the strongest builds in sPvP, with high mobility, damage, sustain, and minor support through Healing Turret to boot. It's only counters are heavy conditions and CC chains, and even then, Slick Shoes + Gear Shield + Rune of Vampirism give many disengage options. But looking over today's announced changes, it seems like it's going to get even stronger. Yes, the meta will shift once the patch happens, and other builds may rise that counter Cele Engi. But as it stands, it's pretty terrifying how much better this new Cele Engi is than the old one.

Consider the following trait selections (chosen to come as close to the existing "feel" of a Celestial Engineer):

Explosives

Minor

• Evasive Powder Keg: Create a bomb when you dodge.
• Steel-Packed Powder: Your explosions cause 5s of vulnerability.
• Explosive Powder: Explosions deal 10% more damage. Your turrets explode, dealing damage and knocking back nearby foes when destroyed.

Major

• Grenadier: Increases your throw velocity of grenades by 100%. Increases the blast radius of grenades by 60.
• Shaped Charge: You deal 5% increased damage to foes affected by vulnerability.
• Thermobaric Detonation: Evasive Powder Keg is now a blast finisher.

Firearms

Minor

• Sharpershooter: Your critical hits have a 33% chance to cause 4s of bleeding.
• Hematic Focus: You have a 10% increased chance to critically strike foes affected by bleeding.
• Serrated Steel: Bleeding you apply lasts 33% longer.

Major

• Heavy Armor Exploit: Your critical hits have a 50% chance to grant you 3s of swiftness and cause 3s of vulnerability.
• No Scope: Your critical hits on nearby foes have a 100% chance to grant you 4s of fury. This trait has a 10 second internal cooldown.
• Incendiary Powder: Your critical hits inflict 4s of burning. Burning you apply lasts 33% longer. This trait has a 10 second internal cooldown.

Alchemy

Minor

• Hidden Flask: Drink an elixir B when struck while below 75% health.
• Transmute: Incoming conditions have a 100% chance of being converted into a boon. This trait has a 15 second internal cooldown.
• Alchemical Tinctures: Elixirs remove a condition from affected allies. Boons you apply last 20% longer.

Major

• Invigorating Speed: When you gain swiftness you also gain 6s of vigor. This trait has a 5 second internal cooldown.
• Backpack Regenerator: While using a kit you passively recover health.
• Stimulant Supplier: Drop a stim pack when you use a heal skill. This trait has a 10 second internal cooldown.

This is a bit overwhelming to look at as is, but I'll just to highlight some key buffs with this kit:

• High/near-permanent Fury uptime from Stimulant Supplier + No Scope + Hidden Flask, just by swapping into Med Kit every 10s, picking up the Stimulant, and getting critical hits on nearby foes (easy with grenades or Sigil of Intelligence). This is in addition to +10% chance to critical bleeding foes (which also procs Engi crits and is pretty common in general).
• Bigger & faster grenades from the Grenadier trait. Makes it much easier to land grenades.
• Free blast finishers from Evasive Arcana Thermobaric Detonation
• Passive +5% damage from Shaped Charge (vuln applied on every grenade)
• More than one usable elite in PvP (not specific to this build, but I'm just happy this is a thing now for Engi). Supply Crate still gives plenty of random CC from turret explosions (it still stuns, right?) and heals, while Mortar Kit is the new kit for engaging and long-range damage.

Of course, this is not without some drawbacks:

• No out-of-combat movement speed. You could change Alchemy for Inventions to get Mecha Legs (and also Automated Medical Response + Vampiric Rune synergy, and Cleansing Synergy which is just obscene with Healing Turret), but I think Backpack Regenerator might give more sustain.
• No Inertial Converter (Toolbelt skills recharge when <25%). This is big, since it means you don't get the free escape after Rune of Vampirism procs.
• No +Endurance from Toolbelt skills though this isn't important.

Discuss?