Mandatory Stats: Make sure to fill out your resist, you want 75% fire/cold/lightning resist. Chaos resist is good, but not mandatory to have 75%, I usually aim for 30-50%. You'll also most likely need 1-2 attribute rolls on gear, belt will solve strength and if you need intelligence, get it on a ring or amulet.
Rings/glove: try to focus on high flat damage to attacks, preferable cold/phys.
Bow: You want the highest dps ele/phys weapon you can afford.
Obliterator Bow is usually the go to, as it has very high base damage and the downside is negligible. Check the notes at the bottom of the guide to learn how to craft a bow. Before you have access to
Obliterator Bow, just use the highest DPS bow you find on the ground or can trade for.
Greater Iron Rune will provide the highest dps.
Quiver: Just good dps stats, high flat/bow dmg or projectile speed with attack speed. Ideally just aim for 3-4 stats from the quiver I'm showing in the gear preview.
amulet: Preferable want +proj levels. Crit chance/crit damage is also good, once you swap to crit. Attributes/resist are also fine here. You need at least 30 spirit on the amulet to use all spirit gems.
Helmet: At the start just look for a high life/evasion/resist helmet, eventually we'll swap to a pure ES helmet with
Subterfuge Mask, but you probably wont have a good one for early mapping.
Chest: you want the highest evasion chest you can afford, this is very important for defense, specially when combined with
Beastial Skin on the passive tree. use
Greater Iron Rune
Boots: You want the highest movement speed boots you can afford, it's a very important stat. Besides that look for high life/resistance.
Belt: Not a lot of choices here, just Life/str/resist, eventually you want to get a
Headhunter.
Rarity is still really good in 0.5, I would try to hit at least 100% if you want to farm efficiently (don't focus on this if you feel like you're lacking damage or defense)
Jewels on tree: Just looking for generic damage: attack damage, elemental damage, movement speed, bonus from quivers, projectile damage, attack speed, crit chance, crit damage, etc.
Eventually you'll also want
Heart of the Well with double "gain as extra" and
Against the Darkness with double again as extra as well.
important:
You'll want 1 sapphire jewel with mana on kill to sustain mana during mapping. For bosses, having Mark of Siphoning II on
Freezing Mark with Eternal Mark should give you enough sustain.
Anoint:
Damage:
Serrated Edges
This is just a cheap anoint and pretty effective when you eventually swap to crit.