Original Post — Direct link

One again here's a quick preview of all the PBE changes for the upcoming patch. Note that these changes may not be finalized.

Edit: Some of these changes are different in the now-posted official changelist, keep this in mind.

Champion balance changes

Amumu:

  • Q mana cost: 70 flat --> 30-50
  • R base damage: 150-350 --> 200-400

Annie:

  • Q AP scaling: 75% --> 80%
  • R tibbers armor and magic resist: 30-70 --> 30-90

Belveth:

  • health regen: 8.5 +0.85 --> 7 +0.7
  • attack range: 125 --> 175
  • P:
    • now gains 1 stack from "large minion takedowns"
    • bAS per stack: 0.25%-1.25% linear between levels 1-18 --> 0.28%-1% linear between levels 1-13
  • Q:
    • Bugfix: No longer deals double R passive true damage
  • E:
    • min base damage: 8-20 --> 8-16 (max base damage is still x4.0 these values)
  • R:
    • coral pickup missing health damage: 25%-35% --> 25% flat
    • bonus attack range: 50-100 --> 50 flat
    • Remora health scale from lane minions: 70% flat --> 50%-70%
    • Bugfix: No longer loses the increased max health when consuming Herald/Baron Coral while already in ult form.

Blitzcrank:

  • Q base damage: 90-290 --> 105-305
  • R active base damage: 250-500 --> 275-525

Dr. Mundo:

  • Q current health scaling: 20%-30% --> 20%-28%
  • R tHP heal over duration: 20%-60% --> 20%-50%

Fiora:

  • P base tHP scaling: 3% --> 2%

Heimerdinger:

  • Q turret base damage: 6-18 --> 7-23
  • Q turret base health: 150-575 linear between levels 1-18 --> 175-700 linear between levels 1-18
  • does not affect RQ turret
  • E cooldown: 12s --> 11s

Ivern:

  • P percent base health cost: 22.5%-5.5% linear between levels 1-18 --> 20%-3% linear between levels 1-18
  • P percent base mana cost: 33%-7.5% linear between levels 1-18 --> 30%-4.5% linear between levels 1-18
  • E base damage: 70-150 --> 80-220
  • R Daisy base health: 1250 / 2500 / 3750 --> 1300 / 2600 / 3900
  • R Daisy base resists: 15 / 40 / 90 --> 20 / 50 / 100

Janna:

  • W base slow: 24%-40% --> 20%-36%
  • W passive base haste: 6%-12% --> 6%-10%
  • E shield: 75-175 +60% AP --> 65-165 +55% AP

JarvanIV:

  • mana growth: 40 --> 55
  • P per-target cooldown: 6s flat --> 6s / 5s / 4s / 3s @ levels 1 / 6 / 11 / 16

Katarina:

  • P dagger bAD ratio: 75% --> 65%
  • E base damage: 15-75 --> 20-80
  • E tAD ratio: 50% --> 40%
  • R on-hit modifier: 25%-35% --> 28%-38%
  • physical damage per projectile: (16% * (1 +80% total AS)) bonus AD --> (16% * (1 +142.85% per 100% bonus AS)) bonus AD
    • effective change in damage: 25.33% (+8.4224% per 100% bonus AS) bonus AD --> 16% (+22.856% per 100% bonus AS) bonus AD (I might have a math error in this, going to confirm shortly)

Lucian:

  • base AD: 62 --> 60
  • Q base damage: 95-235 --> 95-215

Olaf:

  • W now has spell tag for attack reset (should refresh one Hail of Blades stack now)

Seraphine:

  • E cooldown: 11s-9s --> 9s flat
  • E slow duration: 1s --> 1.5s

Shaco:

  • health growth: 103 --> 99
  • armor growth: 4.7 --> 4.0
  • Q bAD scaling: 25% --> 40%
  • W aoe damage AP scaling: 9% --> 12% (single target damage unchanged)
  • E damage: 70-170 +70% bAD +50% AP --> 70-170 +75% bAD +60% AP (execute is still x1.5 these values, backstab bonus damage unchanged)

Singed:

  • W slow: 60% flat --> 50%-70%
  • R bonus stats: 30-90 --> 20-100 (affects AP, AR, MR, MS, HP5, and MP5 equally)

Soraka:

  • R base heal: 125-275 --> 150-350 (low health amp is still x1.5 these values)
  • R no longer cleanses Grievous Wounds before healing

Viego:

  • P base heal tHP: 2.5% --> 2.0%
  • R base missing health scaling: 15%-25% --> 12%-20%

Yorick:

  • Ghoul health: 100-185 linear between levels 1-18 +15% Yorick's total HP --> 110-212 linear between levels 1-18 +20% Yorick's total HP
  • Maiden health: 300 / 1000 / 3000 +70% Yorick's total HP --> 350 / 1100 / 3300 +75% Yorick's total HP

Yuumi:

  • P shield: 56-360 --> 60-380
    • breakpoints: "56 +9/lvl @ 1, +13/lvl @ 4, +18/lvl @ 8, +27/lvl @ 15" --> "60 +10/lvl @ 1, +15/lvl @ 4, +20/lvl @ 8, +25/lvl @ 15"
  • E base haste: 15% --> 20%
  • E base healing: 70-190 --> 70-150

Zeri:

  • health regen: 3.25 +0.55 --> 4.5 +0.7
  • W damage: 10-150 +150% tAD +70% AP --> 20-160 +130% tAD +60% AP

Item balance changes

Night Harvester:

  • recipe changed from Blasting Wand to Fiendish Codex, total cost and stats unchanged

Shadowflame:

  • Bugfix: Now deals the correct damage (was reduced by remaining MR an extra time), but still applied in a bugged way via a separate instance.

As a side note, Maw of Malmortius has a new data value stating "8% Omnivamp" which shows up in the League Client tooltip, but in-game the effect after the shield is triggered is still at 10%. Unknown what was or is the intend regarding this one.

Tooltip fixes:

  • Sterak's Gage tooltip now clarifies that the shield decays over the duration.

  • Rell E and Urgot E tooltips now include their stun durations.

Some stuff relevant for challenges:

  • Qiyana and Renata have had their missing ability traits added so should show up in synergy challenges now

  • Nautilus:

    • secondary class changed from fighter to support
  • Rell:

    • secondary class changed from nothing to support
  • Syndra:

    • secondary class changed from support to nothing

Credit for compiling this data goes to u/FrankTheBoxMonster. Context to these changes and some upcoming adjustments is on twitter by Riot Truexy

Edit: Source for the balance change data and spell tags is the current PBE. See a curated changelist of the current PBE state here: https://leagueoflegends.fandom.com/wiki/VPBE

Edit2: Added Riot twitter ref now that the official list is up.

External link →
20 days ago - /u/phroxz0n - Direct link

Originally posted by _Willothewisp_

70 dmg increase in rank 5 E on Ivern seems big

The ivern scrape is wrong. It's 30 shield when maxed and no damage increase