Amulet
Maximum Life as a Prefix is extremely ideal, Utilize suffixes that help fill in your resistances or give you some much needed attributes, To run All our Gems You will need 30 Spirit from either your Amulet or Chestpiece! 
High Alert will be a great cheap early mapping anointment.
Bow
Leveling through campaign the only thing that matters for your bow is how much flat damage it has, low level bows have very little raw damage and all our total damage stems from the flats we manage to string together, so any bows with good flat physical lightning cold or fire damage rolls are going to do the most for us. Add in flat lightning with runes on early game bows, and then % physical damage on late campaign bows. Use Bows with Surpassing Arrow % if you happen to get a good one. Suffixes should include any mix of Attack Speed, Surpassing Chance for Extra Arrows, Dexterity, Projectile Skill Levels, or Crit Stats.
If at any point you feel as though you're getting to weak or having to do to many combos during the campaign, this is a sign you should upgrade your bow!
Quiver
Be willing to use any Quiver that provides you with Prefixes holding additional damage in all forms, and suffixes that are beneficial such as Attack Speed, Critical Damage, Dexterity, or Projectile Skill Levels.
Rings
Early game Flat Damage Prefixes on Rings of any variety will provide noticeable benefit when it comes to clearing quickly through the campaign, entering maps utilize your ring types and suffixes to max out your elemental resistances as necessary!
Gloves
Early Game Focus on Gloves with flat damage stats attack speed or both, Gloves provide alot of stats for your build early game and can really speed up your campaign so don't let them fall to far behind!
Gear Pieces
Utilize Full Evasion gear whenever possible, Evasion received major buffs in 0.3 now allowing you to dodge all attacks not telegraphed will red flashes ontop of receiving an additional defensive in the form of Deflection making full evasion from the get go much more comfortable. For your Prefixes above all else we want Maximum Life, Additional Evasion and most importantly, Elemental Resistance Suffixes. You won't need to worry to much about Resistance Early Game, but keep it positive in Act 4 and beyond, and work on capping it before beginning Maps at 75% each.
Jewels
Prefixes
Penetrate Lightning Resistance
Evasion %
Increased Damage with Bows
Increased Attack Damage
Increased Lightning Damage
Suffixes
Critical Hit Chance with Attacks
Critical Damage for Attacks
Attack Speed
Attack Speed with Bows
Movement Speed
Any combination is a good jewel
Campaign Rewards
- Charm Duration. Act 2
- Stun Threshold from Venom. Act 3
- 30% Increased Life Recovery Goddess of Justice Act 4
- 5% All Elemental Resist Tattoos Act 4
- 5% All Elemental Resist Pillar Interlude
Map Modifiers to Avoid
Enemy has 50% Increased Accuracy
Additional Damage as Chaos
Increased Ailment Threshold
You can do these, but don't be shocked if you die or it's not comfortable!
Charms
Through the campaign if you encounter a boss giving you trouble switching to a proper elemental resistance charm to help curve a one shot can be helpful, otherwise use a 
Thawing Charm and call it a day.
Ranger
Deadeye
Lightning Arrow itself received a major buff to it's personal damage potential in 0.4, Sadly 
Lightning Rod was nerfed to less then half of it's original power, there's also been a significant reduction to 
Gathering Winds power in our ascendency which will force us to play for Deflection more so then before. That all being said, there is new potential to be explored with the new Ascendency options and 
Mirage Deadeye which I've found success with.
