Power Abilities

For starters use  for the + vulnerability , then as your spam power  then hit  then hit  then hit  for both weaken and + 10% max power / sec, duration 6s - then  then  x2, for the awesome brutal damage.

 

Artifacts

 For the Brutal Damage Rating - The reason I use this is as mentioned in the "Note" in the beginning, the build is maily (not only), but mainly build around  because it does a ton of damage because of the 100% brutal strike chance.

For the ranged + melee damage rating, since this Ultron build uses both, that's quite good. This artifact has both brutal strike rating and critical hit rating, which ups the % of those = higher chance of either critical hit or brutal hit. The 586 brutal damage rating which tacks up to 3 times will gain you 1758 brutal damage rating, that's about 30-35% extra brutal damage rating alone. +1 attributes = 8% damage.

 For the +5 energy which is = 20% extra damage, +400 brutal strike rating for higher chance of brutal hit, and 2500 health for better surviveability.

 For +4 durability = 16% extra damage, +500 damage rating, +700 brutal damage rating. 

 

Uniques

 For the top damage rating, both critical and brutal damage rating, regenerates 300 health when you hit an enemy, which is good for surviveability. Bulwark, Rage and Wrath of Muspelheim, which gives various good abilities.

 For Brutal Strike Rating = higher brute chance, brutal damage rating for more damage when you brutal hit, +2 energy = 8% damage, and good health.

 For +5 durability and +5 energy = 40% extra damage, +403 critical hit rating and brutal strike rating = higher chance of both crit and brute hit, +85 spirit for higher damage with  

 For the +4 durability = 16% damage, +85 spirit for the higher damage with  good health +4k for better surviveability.

 For +2 durability and +3 energy = 20% damage, +403 critical hit rating and brutal strike rating = higher chance for crit and brute hit, +962 damage, good since it's a slot 5 item, and + 1350 critical damage rating = higher critical hit when you crit.

 

Legendary

 for the + 10.000 brutal damage rating for huge hits with especially  which can hit x2, the nullfier is top with this build, since it's mainly (not only), but mainly build around . 

 

Uru/Relics/Catalyst etc.

 For the 800 extra defense rating for surviveability, with the  For both critical damage rating from energy damage and the brutal damage rating from physical hits. The Power Doop give an extra +75%-ish brutal damage rating with perfect roll (good luck getting that roll).

 For the extra critical damage rating, since there isn't a brutal damage rating.

 For the +3 durability = 12% extra damage, 418 health regen when you hit an enemy for more surviveability, 25% regen of health when a med-kit is used for better surviveability, Cosmic damage shield equal to 50% of your Health for more surviveability, all 4 grades as critical damage rating for more damage on critical hits and 1000 defense rating for more surviveability.

 Because it's Ultron, he needs an extra Ultron as a pet

Common: 8% health for more surviceability
Rare: +50 spirit, for some extra damage on 
Epic: 10% brutal damge for higher brutal hits
Cosmic: +2 ultimate, I find this best, higher damage rating, and when at 20 ranks, only 7 minutes cooldown, so every second wave in Cosmic Midtown, you can use your ulti, pretty good (maybe every wave, since CMM is more op now)
Unique: +3 durability for an extra 12% damage rating.

 For the +150 spirit which gives more damage to , +294 critical hit rating = higher chance of crit hit, +616 area damage rating.

 For the + 1070 brutal damage rating for higher damage when you brute hit, +319 brutal strike rating = higher brute chance, +1466 health, and when you use a medkit, you gain +423 damage rating for 10 seconds, regenerate 100 health when you hit an enemy = better surviveability.

 + brutal damage rating and + critical damage rating for higher hits, when you brute and crit hit.

 

Alternatives

- Artifacts

 For the +4 energy = 16% extra damage, +300 brutal strike rating = higher brute hit chance, +600 physical damage rating, which is good, since you use physical powers with this build. 

 For the +3 attributes = 24% extra damage

 For the +3 durability = 12% damage, +750 physical damage rating +500 brutal strike rating = higher brute hit chance.

 For the +4 attributes = +4 durability + 4energy = 32% extra damage rating, 20 health when you hit with an energy power for more surviveability.

 For +2 attributes = 16% extra damage, 400 damage rating against weaken villians, which comes in handy, because  gives weaken.

 For the +3 energy for 12% extra damage, the ranged + melee damage rating, since this Ultron build uses both, that's quite good. This artifact has both brutal strike rating and critical hit rating, which ups the % of those = higher chance of either critical hit or brutal hit. The 552 brutal damage rating which tacks up to 3 times will gain you 1656 brutal damage rating, that's about 30-35% extra brutal damage rating alone.

 

- Uniques

 For the +349 critical hit rating and brutal strike rating = higher crit and brute hit chance, when you crit hit, you gain defense and regenerate health, when you hit with energy and physical powers, you gain +441 extra damage rating to both energy and physcial, if both procs are active you gain +1 durability for an extra 4% damage rating.

 

 For the +85 spirit = higher damage to , +417 energy, and physical damage rating, +2 durability and 2 energy = 16% damage rating.

 For the + 354 extra spirit = higher damage to , +5 durability = 20% extra damage rating.

 For the +878 critical damage rating, +2 durability and +2 energy = 16% extra damage rating, and when you hit with a ranged power, you gain +320 critical hit rting and +320 brutal strike rating = higher chance of crit and brute hit.

 If you want to go insane with the brutal build, use this. + 672 brutal strike rating = higher chance of brute hit and +8011 brutal damage rating = higher damage when you brute hit.

 For the + 1091 damage rating (good for a slot 5 unique any hero), +321 damage ratng to both ranged and area damage powers, +268 critical hit ratiing = higher crit chance and +900 cirtical damage rating = higher damage when you crit, and 20% chance to gain +9 energy when you critically hit with a ranged power, the "Essence of Jinn"

 

 

- Legendary

 For better surviveability.

 For mainly +6 energy = 24% damage rating and energy damage rating.

 

- Relics/insignia/medal etc.

 For better surviveability.

 For more area damage.

 For more brutal damage rating and +2 durability +1 attribute = +3 durability and +1 energy = 16% damage rating

 For +577 critical damage rating, +4% attack speed, +171 critical hit rating, +2843 health and +199 damage rating when you hit with an energy power.

 For +577 critical damage rating, +4% attack speed, +171 critical hit rating, +2843 health and +199 damage rating when you hit with a melee power.

 For +577 critical damage rating, +4% attack speed, +171 critical hit rating, +2843 health and +199 damage rating when you hit with a physical power.

 

Note: Don't worry about power (spirit), every time your  becomes available again, you got full power (spirit). But remember, the more power the more damage to  

Infinity System

All the points are the realistic points I have myself which is 1139 points (when I created this build).