LOL

League of Legends Patch 26.17 Notes

TL;DR

Arenas, Bridges, Summoner’s Rifts new and old… change comes for us all.
Damage Reduction Ability Power Ratio : 7% per 100 AP (Halved for Magic Damage) (reduced to 75% value for Magic Damage in Arena) ⇒ 8% per 100 AP (Halved for Magic Damage) (reduced to 75% value for Magic Damage in Arena)
We believe Vayne may need larger scope work in the future to help out her bot lane, but for now are prioritizing constraining her top lane power. These changes should impact her up there more than in bot lane.
Xerath has rested slightly high in power both mid and bot, and after last patch's adjustments to mages has come out on top in mid lane compared to others. Given his extremely high ban rate in certain regions, he's due a light nerf.
Last patch’s Sundered Sky nerf was a step in the right direction, but landed a bit under-target given all of the other moving pieces of that patch.

Mana Cost Per Second : 35 / 40 / 45 / 50 / 55 ⇒ 30 / 35 / 40 / 45 / 50
Graves has had a number of indirect buffs over the last few patches and this has put him in a pretty strong spot. We are looking to soften a bit of his ability to snowball the game with high AD builds.
Ability Power Ratio : 70% ⇒ 100% (It is already 100% in Arena, so this is standardizing the value)
Attack Speed Ratio : 0.4 ⇒ 0.625
Critical Strike Damage Reduction : -10% ⇒ -5%
Attack Speed : 20% ⇒ 25%
Range : 1200 ⇒ 1300
Health Growth : 89 ⇒ 90

Cho's early game has lost pizzazz with Hail of Blades and Hextech Rocketbelt nerfs, so we are making it up with a bit of early damage when he does get those autos off.
Damage Reduction Ability Power Ratio : 7% per 100 AP (Halved for Magic Damage) (reduced to 75% value for Magic Damage in Arena) ⇒ 8% per 100 AP (Halved for Magic Damage) (reduced to 75% value for Magic Damage in Arena)
Attack Speed Growth : 2.35% ⇒ 1.5%
Life Steal : 12 / 18 / 24% ⇒ 10 / 15 / 20%
Attack Speed : 30 / 45 / 60 / 75 / 90% ⇒ 30 / 50 / 70 / 90 / 110%
Mana Cost : 30 ⇒ 46 / 42 / 38 / 34 / 30
Minimum Damage : 50 / 65 / 80 / 95 / 110 ⇒ 40 / 55 / 70 / 85 / 100
Xerath has rested slightly high in power both mid and bot, and after last patch's adjustments to mages has come out on top in mid lane compared to others. Given his extremely high ban rate in certain regions, he's due a light nerf.

Bug Fix : Fixed a bug where Molten Shield dealt too little damage
Bug Fix : Fixed a bug where Molten Shield could damage enemies for non-Attacks
Bug Fix : Fixed a bug where AP was not applying to Tibbers’s burn damage.
Bug Fix : Fixed a bug where the cooldown was always 5 seconds, regardless of rank or Cooldown Reduction.
Bug Fix : Fixed a bug where the target was stunned for approximately 0.3 seconds longer than intended.
Heimerdinger is on the strong side, even after last patch’s nerfs. He’s got a meaningful bugfix this patch, so we wanted to call it out directly.
Bug Fix : Fixed a bug where R-empowered turrets dealt double damage.
Jax is receiving a few bug fixes this patch, and while he’s pretty balanced, they’re important enough changes to warrant being called out on their own.

NEW Champion Swap : Enabled during the Loadout phase.
NEW Swap Request : Players can request to swap champions, and players can accept swap requests. Lanes stay the same.
NEW Champion Pick Order Swapping : Players can swap champion pick order.
NEW Voting Topics : Players can see and vote on multiple topics during active voting.
NEW Voting Results : Players can see the results for the topics that were voted on.
NEW Effect : Gain a Tiamat when completing a Hydra Item
NEW Quest : Gain Ravenous Hydra, Profane Hydra and Titanic Hydra
NEW Reward : Gain Ultra Hydra