WIP remake of my old Pixel Emma guide from the Marvel Heroes forums. Insignia and Catalyst are not final, nor are Hero Synergies. Also no blessings, pet, or other bonuses not currently available on Tahiti. EDIT: Crafting is here! Build updated to reflect that. Updated videos soon to come.

For Infinity, start with 6 points into Durability, then 152 points into Attack Speed. Dump extra points into Critical Damage, or take some from Attack Speed and put them here if you find you need the cost reduction from the 100-point bonus. 

Make sure your catalyst has 100 spirit on medkit use to keep your spirit from bottoming out. Use your medkit on cooldown.

For your rotation, begin with , then to apply bleeding and vulnerable. Follow with and . Use now, then  then repeat the ->-> trio, reapplying  as needed. Your goal from here is to keep using and to lower the cooldown of . is your filler, and remember to use  after each  to keep bleed and vulnerable up, and to make sure  and  are both on cooldown to get the most value out of .

For your pet, get yourself an AIM Scorcher or Hydra Brawler with Commanding and Frenzied.

Update 1: If you're having spirit issues even with a spirit on medkit use catalyst, you have several options: 

A) Put Infinity Points into Spirit in the Mind tree

B) Drop Cobra's Hood for her personal unique (Locket)

C) Use Rogue's, Punisher's, and/or Loki's Hero Synergy bonuses

D) Use a cosmic artifact with 15% spirit cost reduction and/or one with +150 spirit

Update 2: Tightened the rotation and adjusted the row 4 trait pick to Mental Overload, as without crafted gear it seems to be more consistent DPS. It should also make for a smoother low-to-mid gear experience.

Speaking of, here are alternative options for artifacts and uniques. Not necessarily in order of effectiveness, your mileage may vary. 

Artifacts: 

, , , , , , , , 

Uniques:

Slot 1: , 

Slot 2:  with Durability, Crit Rating, and Critical Damage Rating, (possibly BiS, won't know 'til I get ahold of one), , ,  . A Cosmic slot 2 most likely has the highest DPS potential while M'zee's is not an option. It may even beat M'zee's, not sure yet.

Slot 3: , , 

 

Slot 4: , 

 

Slot 5: Especially if you're having spirit issues, , 

 

Ring:  If you're struggling with survivability pre-i80 Shield, an ICP Signet may help. Phys, Mental, Melee, or Ranged all work, but do note you'll be losing out on significant damage.  with Durability and Brutal Strike Rating may also work for damage if well-rolled.

Medallion: , , , , ,, whatever else you might have laying around with relevant stats.

 

Dummy TTK: 3:18

Vs Ultron: 2:25

Vs Kurse: 1:41