Elise

Elise has been rewarded too well for playing safely, so we shifted some of her power to her spider form to increase the reward for taking risks.

Neurotoxin
Cast range reduced to 625 from 650
Damage reduced to 40/80/120/160/200 from 50/95/140/185/230
Venomous Bite
Damage increased to 60/110/160/210/260 from 50/95/140/185/230

Janna

Howling Gale
Fixed a bug where the knockup duration was not increasing based on charge time
Knockup duration when fully charged increased to 1 second from 0.75 seconds

Jarvan IV

Jarvan has been bringing too much utility to his team, so we've removed the armor component of Demacian Standard's aura.

Golden Aegis
Shield amount per nearby enemy champion increased to 20/30/40/50/60 from 20/25/30/35/40
Mana cost reduced to 45/50/55/60/65 from 65
Demacian Standard
Active no longer grants bonus Armor

Nami

Tidecaller's Blessing
Added new visual effects to better communicate the amount of charges left
Duration increased to 6 seconds from 5

Singed

Singed is intended to be incredibly durable and to gradually burn down his opponents in team fights. By making disables more effective against him and reducing his initial burst damage, Singed’s opponents now have more time and ways to deal with him in these situations.

Fling
Damage reduced to 80/125/170/215/260 from 100/150/200/250/300
Ability Power ratio reduced to 0.75 from 1.0
Insanity Potion
No longer reduces the duration of disables

Taric

Last patch's changes opened up different playstyles for Taric but did not effectively address his power level. These changes reduce Taric's lane dominance by lowering his burst damage and forcing him to make more tradeoffs when choosing which spells to level up.

Shatter
Damage reduced to 50/90/130/170/210 from 60/105/150/190/240
Armor damage ratio reduced to 20% from 30%
Dazzle
Stun duration adjusted to 1.2/1.3/1.4/1.5/1.6 seconds from 1.5 at all ranks

Items

Blade of the Ruined King - Hotfixed 3/5
Attack Damage reduced to 25 from 30
Combine cost increased to 1000 gold from 650 (total cost increased to 3200 gold from 2850)
Maximum damage dealt to minions and monsters reduced to 60 from 90
Active heal amount is now reduced by the target's Armor

Aegis of the Legion
Aura grants an additional 50% Health Regen, Armor and Magic Resist for minions

Runic Bulwark
Combine cost reduced to 400 gold from 650 (total cost reduced to 2950 gold from 3200)
Health reduced to 300 from 400
Magic Resist aura reduced to 25 from 30
Aura grants an additional 50% Health Regen, Armor and Magic Resist for minions

Locket of the Iron Solari

Locket of the Iron Solari is mainly picked up by junglers and supports, roles that most frequently earn less gold than others, for the team-wide active. We've reduced both the cost and personal stats on the item to lessen its gold impact while preserving its team utility.

Combine cost reduced to 520 gold from 670 (total cost reduced to 1850 gold from 2000)
Health reduced to 300 from 400

Runaan's Hurricane
Secondary target radius increased to 375 from 300
Fixed a bug where Hurricane could target invisible enemies

Sheen
Combine cost reduced to 365 gold from 425 (total cost reduced to 1200 gold from 1260)

Trinity Force
Total cost reduced to 3843 gold from 3903 gold

Lich Bane
Combine cost increased to 940 gold from 880 (total cost unchanged)

Iceborn Gauntlet

We've noticed that, in general, champions who buy Iceborn Gauntlet are front-line champions with more emphasis on surviving than dealing AP burst damage. We've adjusted Iceborn Gauntlet's stats to accommodate this play case.

Combine cost increased to 700 gold from 640 (total cost unchanged)
Armor increased to 70 from 60
Ability Power reduced to 30 from 40

Ravenous Hydra
Combine cost reduced to 200 gold from 400 (total cost reduced to 3300 gold from 3500)
Life Steal increased to 12% from 10%

Zephyr
Recipe changed: Stinger + Pickaxe + 725 gold = 2850 gold (total cost unchanged)
Attack Damage increased to 25 from 20

Warden's Mail
Attack Speed reduction reduced to 15% from 20%

Randuin's Omen
Attack Speed reduction reduced to 15% from 20%

Seeker's Armguard
Ability Power reduced to 20 from 25

Runes

Continuing our efforts from Patch 3.02 to standardize cooldown reduction, we've slightly buffed Cooldown Reduction runes to provide less awkward stat amounts. For example, nine Tier-3 Scaling Glyphs of Cooldown Reduction previously provided 8.62% cooldown reduction at level 18, but will now provide an even 10%.

Cooldown Reduction and Cooldown Reduction per Level runes have been increased at all Tiers (varying from 2-35% increase)

Spectator Mode

Fixed a bug that would cause the spectator client to crash when using chat commands (ex: /joke, /taunt)

Restricted Chat Mode

In an effort to encourage active reform and shield players from toxicity, we’ve implemented a new account restriction that limits in-game chat for toxic players.

Certain players (identified by Tribunal and by Player Support) will have a limited number of in-game messages available and limited access to [All] Chat.
Restricted players that successfully complete matchmade games will earn their chat privileges back.

General

Ready checks no longer return players to the PvP.Net landing page
"Random" has been moved to the top of champion select
Chat notifications in the bottom right-hand corner of the client now wait to appear until players have closed the AFK popup dialogue first
Battle Training bots no longer acquire unavailable items
Dragon, Baron, Towers and Inhibitors now show assists