Patch 4.15 Analysis

Alistar

W - Headbutt

SUCKER PUNCH:Alistar can no longer land an additional basic attack on his Headbutted target as they fly away

This takes a chunk out of Alistar's lane dominance. He no longer freely wins trades. Alistar is still strong late-to-mid, but he won't be as highly contested. 

Also, RIP AP Alistar?

Gnar

Q - Boulder Throw

BODY BLOCK:Boulder now checks to see if any enemy champions are standing really close to Gnar's center point when he casts (and it now hits them)

SHRAPNEL:Boulder now does its area-effect damage in a small radius on landing if it hits no enemies

BOULDER SPEED:2000 ⇒ 2100

BOULDER WIDTH:80 ⇒ 90

GOOD FORM, GNAR:Gnar can now pick up his thrown boulders off the ground after 0.5 seconds ⇒ 0.3 seconds

Q - Boomerang Toss

NEWTHAT'S A SMART BOOMERANGBoomerang's return logic has been improved to better track Gnar

OUTGOING WIDTH45 ⇒ 60

RETURN WIDTH70 ⇒ 75

MINIMUM SPEED1000 ⇒ 1400

BOOMERANG CLARITYBoomerang's return particles have been improved!

R - GNAR!

NEWMAGICAL GNAR:Now scales with 0.0 AP ⇒ 0.5 AP

RELIABLE GNAR!:Fixed a bug where GNAR!'s knockback ministun (not the wall stun) would sometimes be removed too early

GNAR SO STRONG:Gnar now moves and perform actions after casting GNAR! in 0.5 ⇒ 0.4 seconds

Boulders and boomerangs will now be a bit harder to dodge, but only slightly. AP Gnar is probably not viable. Strongest Gnar is tank Gnar. He is annoying. Please stop playing him.

Urgot

General

THIS REALLY HELPS:Recommended items have been updated

THIS PROBABLY HELPS MORE:Basic attack missile speed is now 1300 ⇒ 1600

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Q - Acid Hunter

NEWGET BETTER AT LAST HITTING, URGOT:Now refunds half mana cost if Acid Hunter kills an enemy

NEWFANCY PARTICLES:Now with extra spinning and a trail

RESPONSIVE MISSILES:Fixed a bug where Acid Hunter would fail to home if it was fired too quickly after Noxian Corrosive Charge was applied

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R - Hyper-Kinetic Position Reverser

COOLDOWN:120 seconds at all ranks ⇒ 120/110/100 seconds

COST:120 mana ⇒ 100 mana

NEWHYPER KINETIC WALKING THROUGH THINGS:Urgot now ignores unit collision for 1 second after successfully using Hyper Kinetic Position Reverser

A VERY SMALL BUFF:Now grants bonus armor and magic resistance after a 0.25 second delay ⇒ immediately

LESS DISORIENTATION:The in-game camera no longer shifts for Urgot when he completes his Hyper Kinetic Position Reverse (so Urgot can follow-up with appropriate skillshots without having to re-orient his camera)

Just some quality of life buffs. Urgot is hidden OP if played well, so be careful. After the change he went from about a 40% win rate to a 42% win rate.

Essence Reaver

COMBINE COST:1050 gold ⇒ 850 gold

TOTAL COST:3400 gold ⇒ 3200 gold

BUGFIX:Fixed a bug where Essence Reaver was restoring more mana than it should at higher mana levels

Reaver is getting stronger and stronger. It is now probably a good rush on Graves, Lucian and Ezreal. Also a good item on Jayce. It is arguably better than Bloodthirster overall. 

Honorable Mention:

ヽ༼ຈل͜ຈ༽ﾉ

PERFORMANCE:Framerates have been improved by 5-10%

Some great skins are coming out including Project: Yasuo and Final Boss Veigar. Riot still needs to give small buffs to the rest of the champion roster. Post on that coming up. Swag.