Up to date as of CA3 October 15th patch

[ITEM:(1891)Devourer's Gauntlet] Start with Devos. This gives you lifesteal to help you sustain. Try not to back if you can until you have enough gold to buy Devos on your first back.

[ITEM:(155)Dagger of Frenzy] Dagger of Frenzy is a cracked carry item. Press button -> Destroy objective. With it's cooldown currently being 30 seconds, you can use this item extremely liberally. If you are in a 1v1 boxing match against your lane opponent, pop Frenzy. If you are hitting a tower, pop Frenzy. If you are taking GF or FG, pop Frenzy. If you're playing baseball, pop Frenzy. If you're going to the store to run errands, pop Frenzy, The point is, pop Frenzy.

[ITEM:(168)Hydra's Lament] Hydra's Lament is Jing Wei's favorite item. No internal cooldown on the item means that you can get off so many procs extremely quickly. 2 -> Basic w/ proc -> 1 -> Basic w/ proc -> Basic -> 2 -> Basic w/ proc absolutely blows up squishies.

[ITEM:(144)Demon Blade] / [ITEM:(157)Death Metal] Now for your first Crit item. I usually get Demon Blade here, as it feels the most natural coming from Smite 1, but I have recently ben trying out Death Metal. At their max effectivenes, Demon Blade gives you 20 Strength, 35% Attack Speed, and 20% Crit Chance, while Death Metal gives you 65 Strength, 20% Attack Speed, and 20% Crit Chance (Jing Wei only scales with Strength, so the Int does not matter.) The upside of Demon Blade is that it is far easier to use. Jing Wei is already one of the more brain intensive ADCs to play, needing to manage her 2, counting your autos and remembering to refresh it to get good damage from her, and also needing to incorporate the Dagger of Frenzy pop into any encounter means that the less active items, the smoother your brain can be. On the flip side, Death Metal has a higher skill cieling. If you can activate it alongside everything else at the right 6 second window, you become a damage dealing monster. The 45 extra strength more than makes up for the 15% lower attack speed, which is especially pertinent considering that Jing Wei's 1 gives her attack speed already built into her kit. Another consdieration is that Death Metal gives the rest of your team near you a bit of extra Strength and Intelligence, helping you all out to deal more damage. When Death Metal is not activated/on cooldown, it still gives 35 Strength and 20% Crit Chance, which is more Strength than Demon Blade gives anyways. TLDR, if you want less to think about, or maybe are a console player so activating a ton of active items is a bit more difficult, go for [ITEM:(144)Demon Blade]. If you want the better item, pick [ITEM:(157)Death Metal], but do be warned that failure to properly utilize it could spell your defeat.

[ITEM:(156)Deathbringer] Crit go brrrrr mandatory crit item.

LAST ITEM FILL SLOT: Your last item should be chosen based on how the game is going, there isn't one BIS item, and I have outlined a few decent choices I have found below:

[ITEM:(207)The Executioner] Standard ADC decent item. Provides you with Penetrating, giving you a max of 30% Penetration after hitting a few basic attacks. If you don't know what else to go for, Exe is never a bad choice.

[ITEM:(152)Brawler's Ruin] IF THEY HAVE HEALING PICK THIS OR YOU'RE THROWING. For real though, although the last slot is a fill slot, probably the most important item here is this one. Brawler's Ruin is key to helping stop the enemy team if they have signficant heals. If the team has [GOD:Anubis] Anubis, [GOD:BaronSamedi] Baron Samedi, [GOD:Yemoja] Yemoja, or [GOD:Chaac] Intelligence Chaac, buy this item. Can also be useful if they have Thanatos, Hades, or Neith. Herc is not out yet at the time of me writing up this guide, but looking at his kit, I would also recommend Brawler's Ruin against a Hercules.

[ITEM:(1930)The Crusher] Crusher could be nice for the purpose of getting the max burst potential out of hitting them with your 1, but both her 2 and 3 are not damage dealing abilities, so really only consider this if the enemy team is trolling and has no targets with any sort of tankiness

[ITEM:(196)Titan's Bane] Titan's Bane is an interesting item. At only 20% Penetration, it gives you less Pen than a fully stacked Executioner, but the upside is that it needs no stacking. Being equivalent to 2 stacks of Executioner though, I struggle to say that this item is worth picking up over Executioner. The better up front burst stats though can help her instantly vaporize enemies with the power of Hydra's Lament.

[ITEM:(204)Sun Beam Bow] Sun Beam Bow is a funny item. Not sure how good it is in practice but it can help you pew pew pew in a funny way. This item has NO Penetration though, so do not pick this if the enemy team has someone tanky.