https://www.youtube.com/watch?v=tPKoBR__hX4&t=390s check this video if you want an explanation on the items. Also search bebop machine gun build + early game win to find the full build on deadlock . obviously late game buy the upgraded versions of mystic reach, spirit and combat armor.
Goal is to keep close to the enemy and use bombs and punching early game. use infuser before you attach bomb for extra damage you want all of this lane phase.
                                
                                            Your melee attacks heal you for 20% of the Melee Damage dealt plus 90. This heal is 40% effective vs non-heroes.
                                
                                            
                                
                                            
                                
                                            Gain Spirit Power and Spirit Lifesteal.
+16 Spirit Power
+20% Spirit Lifesteal
6s Duration 
                                
                                            When you perform a Light or Heavy Melee attack against a hero, deal Extra Spirit Damage with the attack and reduce the target's Spirit Resist
x Spirit Damage (adjusted by Spirit Power)
-12% Spirit Resist
8s Duration 
                                
                                            When you are above 60% health, deal additional Weapon Damage.
+20% Weapon Damage (Conditional)
get your defensive and movement items early game, swift striker and lifesteal should keep you alive and winning.
                                
                                            Reduces Bullet Resist on enemies when you deal Spirit Damage.
-12% Bullet Resist
8s Duration
                                
                                            
                                
                                            
                                
                                            
                                
                                            
                                
                                            Reduces the effects of enemy Movement Slow
+40% Movement Slow Resist
                                
                                            When you have a Bullet Shield, gain Weapon Damage and Fire Rate.
+28% Weapon Damage While Shielded
+8% Fire Rate While Shielded
This is the core to your build ALL damage comes from here
                                            Increases Weapon Damage as you continuously fire your weapon.
75% Max Weapon Damage (Conditional)
3s Time for Max Damage
                                
                                            Reduce nearby enemies' Bullet Resist and Fire Rate. If there is only one enemy hero nearby, this effect is tripled.
-10% Bullet Resist (Conditional)
10% Fire Rate Slow (Conditional)
15m Radius
                                
                                            Grants Bullet Resist when your bullets hit an enemy hero. Each shot can only grant one stack.
36% Max Bullet Resist
2% Bullet Resist per Stack
20s Stack Duration
                                
                                            Your bullets build up a Bleed on enemies, causing them to lose a percentage of their current health over time. Also applies Healing Reduction on the bleeding target.
5%/sec Bleed Damage
-65% Healing Reduction
3s Duration
10.3% Buildup Per Shot 
                                
                                            Each hero kill grants permanent Weapon Damage (up to a max of 5 times). Death results in loss of 1 stack. 
Conditional: +10% Weapon Damage per Kill
                                
                                            superior duration extends the amount of bleed ticks from toxic bullets and decay. pristine emblem + decay + toxic bullets means no one has to much life steal including abrams. return fire for wraith ult (you can just punch haze away) and debuff remover for big DOT or stuns.
                                
                                            
                                
                                            Your attacks have additional Weapon Damage against enemies above 50% health.
+25% Weapon Damage (Conditional)
                                
                                            Reduces healing received of targeted enemy and inflicts damage over time of their current health. Decay's damage is non-lethal.
-50% Healing Reduction
3.1%/sec Bleed Damage
15m + (0.20 * SpiritPower) Cast Range
10s Duration 
                                
                                            Automatically fire a bullet towards any attacker who damages you with their abilities or weapon.
70% Bullet Damage Returned
30% Spirit Damage Returned
7s Duration
                                
                                            Reduces the duration of all negative effects applied to you.
35% Debuff Resist 
Active - 45s:
Purge all negative effects currently applied to you. If any effects were removed, gain a movement speed bonus.
Cannot be used while Stunned or Slept.
+3m/s Movement Speed
3s Duration