The marksman class has major durability problems, especially in the early laning phase where their power feels heavily reliant on their supports. This has been causing issues in gameplay satisfaction since a marksman's strength relies on the length of time they're alive. By increasing their mobility (via items) and base health, we feel that ADCs won't be punished so aggressively when they fail and will still have a chance to bounce back and unlock their power in fights.
That being said, we've heard your concerns about the bot lane marksman champions that can also solo lane like Lucian and Vayne. We're giving them a separate set of changes which you can find more details on below.
We’ve also omitted Corki, Kindred, Quinn, Senna, and Graves due to having their primary playrate in other lanes, with the understanding that Senna may be considered for similar changes in the coming patches.
MOVEMENT SPEED : [5%] ⇒ 7%
Energized damage higher early, lower late. Lightning bounces increased. Lightning no longer crits.
Shiv still makes lightning, but we're removing the ability for lightning to crit. This is partially for that crit-vs-Energized split we've talked about already, but also because fully stacking Energized items (360 damage) gets you more power IE Shiv crits did previously (325 damage). Since this is still an early-to-midgame nerf, we're also folding Stormrazor's old bounce increase into Shiv's baseline. This is also a good time to remind you that Shiv no longer needs RFC to proc on turrets.
ENERGIZED DAMAGE : [60-140 (lvl 1-18)] ⇒ 120
SHIV LIGHTNING BOUNCES :  ⇒ 7
EXTRA SHOCKING Shiv Lightning can no longer critically strike
Shiv needed a little extra buff to bring it up to the level of the other Zeal upgrades.
TOTAL COST :  ⇒ 2600 gold
ATTACK SPEED : [35%] ⇒ 40%
CRITICAL STRIKE CHANCE : [30%] ⇒ 25%
Gold cost decreased
TOTAL COST : [2600 gold] ⇒ 2900 gold
Combine Cost : [600 gold] ⇒ 800 gold
Energized proc damage decreased at higher levels. Lightning no longer deals bonus damage to minions.
The combination of proc damage and wave clear is allowing any marksman to be their team's wave clear all on their own, making Statikk Shiv too dominant a pick over the other zeal items.
PROC DAMAGE : [60-160] ⇒ 60-140
WAVE CLEAR No longer deals bonus damage to minions
Rapid Firecannon and Statikk Shiv cannibalize each other’s strengths due to Energized proc damage not stacking between sources. We’re trying to better differentiate the two in ways that also make their combination more compelling (Long range chain lightning? We’re in there.) Shiv already had what it needed to be the burst-oriented option (remember: the lightning can crit for double the damage) so we’re tuning it to push that distinction harder.
COMBINE COST :  ⇒ 600 (offsets component item cost changes; total cost still 2600 gold)
DAMAGE TO CHAMPIONS : [50-120 (at levels 1-18)] ⇒ 60-160 (at levels 1-18)
BONUS DAMAGE VS MINIONS : [+120% (110-264 total damage)] ⇒ +65% (99-264 total damage)
With Rapid Firecannon's damage decreasing, Statikk Shiv's damage is going up to really push it as the one you get when you're looking to burst. Important reminder: Shiv's damage can crit (while RFC's cannot), meaning that in a heavy crit build, Shiv's ability to lay the smackdown on a close-knit group of units is nothing to sneeze at.
DAMAGE : [30 - 100] ⇒ 50 - 120
More damage to minions.
While trying to keep the relative balance between Zeal's upgrades, we decided Shiv was lagging behind as a waveclear option. No longer!
BONUS DAMAGE TO MINIONS : [75%] ⇒ 120%
Zeal and all of its items cost more.
We don’t want to delay marksmen from participating in the game for too long, but their ‘1.5 item power spike’ is presently pushing them over the edge. Zeal’s newfound cost-efficiency is one of the culprits of this early-midgame bump, so we’re taking a little off the top to keep the pacing and power-growth of marksmen one that all can keep up with.
ALL THE WAY DOWN : Total costs of all items building out of Zeal are also increased by 100
Damage from Kircheis Shard, Statikk Shiv and Rapid Firecannon no longer stack (effects still do).
As sweet as it is to chain-lightning from a million range, it’s clear that the damage from that combination is too high for the safety. We’re keeping the ability for you to stack the effects (because long-range lightning is awesome), but it’ll only take the highest damage of your combined effects to reduce their surprise burst potential.
CHOOSE IT OR LOSE IT : Now chooses the greatest damage of your Energized attacks for the first target hit, rather than all the damage.
Damage vs champions decreased.
One half of the potent Shiv + Firecannon powercouple, we're toning down Shiv's overall damage against champions to keep it strong when pushing, but less of a power-spike when compared to Zeal's other upgrades.
MAGIC DAMAGE : [50-150 at levels 1-18] ⇒ 30-100 at levels 1-18
DAMAGE AGAINST MINIONS : [+50%] ⇒ +75%
TOTAL cost : 2500 gold (unchanged)
BUILD path : Zeal + Kircheis Shard + 550 gold
ATTACK speed : [40%] ⇒ 35%
CRITICAL STRIKE chance : [20%] ⇒ 30%
MOVEMENT speed : [6%] ⇒ 5%
SHIV MAGIC damage :  ⇒ 50-150 (at level 18)
SHIV LIGHTNING TARGETS :  ⇒ 5
LIGHTNING ROD Now deals 50% bonus damage to minions
- PASSIVE CRIT :: Passive now only critically strikes when the associated attack critically strikes
- Passive is no longer consumed when attacking wards
- Statikk Shiv added
- +40% Attack Speed
- +20% Critical Strike Chance
- +6% Movement Speed
- Unique Passive: Moving and attacking build Static Charges. At 100 Charges, your next attack expends the Charges to deal 100 magic damage to up to 4 targets. This damage can critically strike.
- Cost: 2,500 (525)
- Builds from Zeal and Avarice Blade