Patch impact read

How patch 17.4 changes your climb

Focus on 17.4's Arbiter, trait, unit, augment, and item changes, distilled into conclusions built for ranked decisions.

new_releases Patch 17.4event Published: May 27, 2026table_chart 117 detailed balance changes below keyboard_arrow_down

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Key changes at a glance

Input and output pools were rebuilt

Arbiter

Check Arbiter options more often before defaulting away; the trait should present fewer dead rolls.

Items are no longer narrow locks

Psionic

Psionic starts can flex between AD, AP, and utility holders more comfortably.

Dark Star 6 down, several traits up

Traits

Do not assume Dark Star emblem caps outrun the lobby; Challenger, N.O.V.A., Sniper, Space Groove, and Stargazer lines need testing.

Aatrox, TF, Bel'Veth, Zoe, Aurora, and MF gained power

Reroll

Reroll is more clickable when shops, items, and augments align, but contest still matters.

Corki down, Morgana/Nami/Xayah adjusted

Four-costs

Level 8 boards should spread items more deliberately instead of blindly chasing Corki.

Artifacts and radiant items moved

Items

Blighting Jewel, Luden's Tempest, Yasuo's Bladework, and radiant defensive options deserve fresh priority checks.

Fun and economy augments were lifted

Augments

Exalted Adventure, Booster Pack, Timestream, and Heart of the Swarm are stronger signals than before.

Arbiter Emblem buffed, Rogue Emblem nerfed

Emblems

Spatula decisions should lean less on Rogue as a generic carry solution.

strategy

TFT Forge read

Open Riot for the full numbers and official article. TFT Forge focuses on planning impact instead of mirroring the full patch notes.

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Systems and Gods

17.4 is not a systems overhaul, but the few system changes do affect opener greed and God selection.

check_circleEkko's Specialist Boon star damage was reduced, so the no-item anomaly tech is less of an automatic spike.
check_circleChest of Greed is disabled because of a bug, removing one high-variance God Offering from the pool.
check_circleChoncc's K.O. Coliseum prismatic breakpoints for Star Guardian and Soul Fighter are harder to reach.
check_circleBug fixes clean up Morgana's cost tooltip, Nunu revive edge cases, Master Yi targeting, Samira passive triggers, and several trial or Double Up issues.

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Traits and Arbiter

The trait pass is the core of 17.4: more playable patterns, fewer dead offerings, and a Dark Star cap check.

check_circleArbiter now guarantees one input from each broad category and one output from offense, defense, and economy pools.
check_circleChallenger, N.O.V.A. 5, Sniper's higher breakpoints, Space Groove 7, and several Stargazer patterns received buffs.
check_circlePsionic items are more flexible, and Target-Lock Optics now scales for either AD or AP champions after first damaging enemies.
check_circleDark Star 6 bonus power and mini Dark Hole health were reduced, especially important for emblem-heavy caps.

groups

Unit reshuffle

The patch brings back several low and mid-cost carries while shaving the most contested late-game defaults.

check_circleAatrox and Twisted Fate buffs help one-cost reroll and Stellar Combo boards when the opening actually supports them.
check_circleBel'Veth's last-patch nerf was partially reverted, while Gwen, Zoe, Aurora, Miss Fortune, Ornn, and Viktor were improved.
check_circleMorgana moved to one range and gained more shield scaling, making her job as a frontliner clearer; Nami casts faster and Xayah hits harder.
check_circleCorki and Fiora were trimmed, Graves received a base attack speed buff, and Shen and Zed had first-cast timing adjusted.

extension

Augments and items

Item and augment changes push players toward broader planning instead of a few default combat spikes.

check_circleShieldmaiden, Self-Destruct, Reach for the Stars, Hard Commit, Hold the Line, Group Hug, Kahunahuna, and Sweet Treats were weakened.
check_circleOne Two Three, Booster Pack, Charge Transfer, Climb the Ladder, Exalted Adventure, Heroic Grab Bag, Heart of Steel, Heart of the Swarm, Luxury Subscription, and Timestream gained value.
check_circleRadiant Adaptive Helm, Radiant Dragon's Claw, Radiant Guinsoo's, and several Artifacts were buffed, while Radiant Gargoyle and Radiant Nashor's Tooth were reduced.
check_circleArbiter Emblem gives more attack speed now, while Rogue Emblem's omnivamp was cut sharply.

insights

Patch verdict

Trait

Arbiter is less all-or-nothing

The input and output pools now surface broader options each game, so Arbiter boards should be easier to evaluate before you pivot away.

Items

More item holders are real

Psionic and Artifact updates make several outputs usable beyond one perfect holder, which gives flex boards cleaner item outs.

Tempo

Reroll lines got oxygen

Aatrox, Twisted Fate, Bel'Veth, Zoe, Aurora, Miss Fortune, and other mid-cost pieces have better spots without fully restoring old problem spikes.

Default power was checked

Dark Star 6, Corki, Fiora, Rogue Emblem, and a few combat augments lost efficiency, so the patch rewards reading the lobby instead of autopiloting.

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Detailed balance changes

Grouped from Riot's 17.4 balance notes. Pure bug-fix text stays in the official source.

Systems2 changes expand_more

Object	Change	Before	After	Impact
Ekko's Boon	Specialist Star Damage	85	70	Nerf
Chest of Greed	God Offering availability	Available	Disabled due to bug	Disabled

Traits and Psionic Items27 changes expand_more

Object	Change	Before	After	Impact
Challenger	Attack Speed	15/22/40/55%	15/28/42/55%	Buff
Dark Star (6)	Bonus	85%	70%	Nerf
Dark Star (6)	Mini Dark Hole HP	30% of Dark Star HP	25% of Dark Star HP	Nerf
N.O.V.A. (5)	Aatrox damage	50% of spell damage	65% of spell damage	Buff
N.O.V.A. (5)	Akali bonus bleed per shuriken	10%	12%	Buff
N.O.V.A. (5)	Akali bleed damage	10/14/18 AD	12/18/24 AD	Buff
N.O.V.A. (5)	Kindred damage amp	5%	10%	Buff
N.O.V.A. (5)	Kindred mark timer	5s	4.5s	Buff
Meeple Emblem	Bonus	1 Mana Regen per Meep	50 Health + 4% Damage Amp per Meep	Rework
Psionic (2)	Drone Uplink	Reworked stats	15% Damage Amp	Rework
Psionic (2)	Malware Matrix	Reworked stats	10% Damage Amp, 15% AS, 10% Omnivamp, -2 Armor/MR on damage	Rework
Psionic (2)	Sympathetic Implant	Reworked stats	10% Damage Amp, 15% AS, 2 Mana Regen, role scaling every 5s	Rework
Psionic (2)	Target-Lock Optics	Reworked stats	10% AD/AP, 20% AS, first-hit enemy grants 9% AD or 7% AP	Rework
Psionic (4)	Radiant Drone Uplink	Reworked stats	20% Damage Amp	Rework
Psionic (4)	Radiant Malware Matrix	Reworked stats	10% Damage Amp, 15% AS, 10% Omnivamp	Rework
Psionic (4)	Radiant Sympathetic Implant	Reworked stats	10% Damage Amp, 20% AS, 4 Mana Regen, role scaling every 5s	Rework
Psionic (4)	Radiant Target-Lock Optics	Reworked stats	20% AD/AP, 30% AS, first-hit enemy grants 9% AD or 7% AP	Rework
Sniper	Baseline damage amp	18/24/28%	18/25/35%	Buff
Space Groove 7	Trait bonus	10%	15%	Buff
Stargazer Fountain	Stargazer healing	2.5%	3%	Buff
Stargazer Fountain (5)	Bonus AD/AP per 2s	7%	9%	Buff
Stargazer Huntress	Teamwide attack speed	15%	12%	Nerf
Stargazer Huntress	Stargazer attack speed	12/35/55%	15/45/70%	Buff
Stargazer Huntress	Mark number	3/5/7	3/5/9	Buff
Stargazer Serpent	Magic damage	25/40/60%	20/40/60%	Nerf
Stargazer Mountain	Attack speed	10%	8%	Nerf
Stargazer Mountain	Durability	6%	5%	Nerf

Arbiter19 changes expand_more

Object	Change	Before	After	Impact
Arbiter inputs	Offering distribution	Ungrouped	Always offer 1 Consistent, 1 Conditional, 1 Economy input	Rework
Arbiter outputs	Offering distribution	Ungrouped	Always offer 1 Offense, 1 Defense, 1 Economy output	Rework
New combination	Attack 3 times + Resists	Not available	12/18	Buff
New combination	Attack 3 times + Gold chance	Not available	3/5% chance, max 2/3	Buff
New combination	Attack 3 times + Leona chance	Not available	10/18%	Buff
Every 3 attacks	Gain Ability Power	5/8	6/9	Buff
Every 3 attacks	Gain Attack Speed	3/5%	4/6%	Buff
Every 4 seconds	Gain Attack Speed	11/17%	14/20%	Buff
Each interest	Gain Resists	12/18	14/22	Buff
Each interest	Shield duration	4s	8s	Buff
Rerolled last combat	Gain Ability Power	30/45	25/40	Nerf
Rerolled last combat	Gain Attack Speed	30/45%	35/55%	Buff
Rerolled last combat	Leona chance	50/100%	70/125%	Buff
Rerolled last combat	Gold chance	22%	30%	Buff
Rerolled last combat	Shield duration	4s	8s	Buff
Each Arbiter star level	Gain Attack Speed	7/8%	8/9%	Buff
Each Arbiter star level	Shield duration	4s	8s	Buff
Removed inputs	Conditional triggers	Below 40% HP, enemy dies, 10 damage instances	Removed	Changed
Removed outputs	Mana and reroll chance	Available	Removed	Changed

Units: Tier 13 changes expand_more

Object	Change	Before	After	Impact
Aatrox	Heal	300/375/575 AP	325/400/650 AP	Buff
Twisted Fate	Minimum damage	180/270/405/690 AP	190/285/430/730 AP	Buff
Twisted Fate	Maximum damage	360/540/810/1380 AP	380/570/860/1460 AP	Buff

Units: Tier 26 changes expand_more

Object	Change	Before	After	Impact
Bel'Veth	Spell damage	18/27/41/69 AD	20/30/45/77 AD	Buff
Gnar	Base attack speed	0.7	0.75	Buff
Gwen	Resists	45	50	Buff
Gwen	Single-target damage	145/220/380/650 AP	145/220/410/700 AP	Buff
Jax	Flat damage reduction	15/20/25 AP	20/25/30, no AP scaling	Buff
Zoe	Spell damage	68/102/153% AP	73/110/180 AP	Buff

Units: Tier 37 changes expand_more

Object	Change	Before	After	Impact
Aurora	Split damage	370/555/890 AP	400/600/960 AP	Buff
Lulu	Mountain spell stun duration	0.5s	0.25s	Nerf
Miss Fortune (Replicator)	Spell damage	250/375/600 AD	275/415/660 AD	Buff
Ornn	Base health	850	950	Buff
Rhaast Redeemer	Attack speed	2/2.5/3%	2/2/2%	Nerf
Rhaast Redeemer	Bonus resists	2/2.5/3	2/2/2	Nerf
Viktor	Spell damage	185/275/475 AP	190/290/500 AP	Buff

Units: Tier 47 changes expand_more

Object	Change	Before	After	Impact
Corki	Missile damage	30/44% AD	28/42% AD	Nerf
Corki	Meeple rocket damage	120/180% AD	110/165% AD	Nerf
Morgana	Range	2	1	Changed
Morgana	Shield HP scalar	10%	15%	Buff
Nami	Mana	25/70	20/65	Buff
Xayah	Base AD	50	52	Buff
Xayah	Main target spell damage	10/15% AD	25/40% AD	Buff

Units: Tier 57 changes expand_more

Object	Change	Before	After	Impact
Fiora	Spell true damage	40/60 AD	37/56 AD	Nerf
Graves	Base attack speed	0.7	0.75	Buff
Graves	Laser Ballistics falloff per target	40%	60%	Nerf
Shen	Mana	10/70	20/70	Nerf
Shen	Spell damage	20/30 AP	25/40 AP	Buff
Zed	Clone health	33/40%	33/45%	Buff
Zed	Mana	50/100	40/100	Buff

Augments25 changes expand_more

Object	Change	Before	After	Impact
Shieldmaiden (Leona)	Mana	10/40	20/50	Nerf
Self-Destruct (Gragas)	Spell damage	280/420/630 AP	250/375/600 AP	Nerf
Reach for the Stars (Jax)	Spell damage	170/250/450 AP	160/240/420 AP	Nerf
One Two Three	Number of 1-costs	1	2	Buff
Booster Pack	Total value	10g	12g	Buff
Charge Transfer I	Damage amp	5%	7%	Buff
Charge Transfer II	Damage amp	8%	10%	Buff
Climb the Ladder I	Stats	3	3.5	Buff
Climb the Ladder II	Stats	5	6	Buff
Exalted Adventure	Rewards	Baseline	Increased about 15%	Buff
Hard Commit	Gold per stage	4	3	Nerf
Heroic Grab Bag	Gold	4	5	Buff
Heart of Steel	Health per growth	12	16	Buff
Heart of the Swarm	Bonus grant	No Tiny Duplicators	Also grants 2 Tiny Duplicators	Buff
Heart of the Swarm	Apex Primordian attack speed	0.6	0.9	Buff
Heart of the Swarm	Apex Primordian mana	30/100	30/90	Buff
Hold the Line	Bonus AD/AP	9% AD, 10% AP	8% AD, 9% AP	Nerf
Group Hug I	Resists	7	6	Nerf
Group Hug II	Resists	10	9	Nerf
Kahunahuna	Bonus true damage	125% AD	100% AD	Nerf
Luxury Subscription	Gold per trigger	5	7	Buff
Mace's Will	Offer timing	Can be offered on 2-1	No longer offered on 2-1	Nerf
Sweet Treats	Health per item	20	16	Nerf
Sunfire Board	Offer timing	Can be offered on 2-1	No longer offered on 2-1	Nerf
Timestream	Health per reroll	2	7	Buff

Radiant Items6 changes expand_more

Object	Change	Before	After	Impact
Radiant Adaptive Helm	Non-tank AD/AP	25	40	Buff
Radiant Adaptive Helm	Mana regen	6	7	Buff
Radiant Dragon's Claw	Percent max health	22%	28%	Buff
Radiant Gargoyle's Stoneplate	Resists per enemy	25	20	Nerf
Radiant Guinsoo's Rageblade	Attack speed per second	14%	16%	Buff
Radiant Nashor's Tooth	On-crit mana on attack	8	6	Nerf

Artifacts4 changes expand_more

Object	Change	Before	After	Impact
Blighting Jewel	MR reduction	4	6	Buff
Ekko's Patience	Damage amp	40%	45%	Buff
Luden's Tempest	AD/AP	55%	60%	Buff
Yasuo's Bladework	Attack speed	10%	20%	Buff

Emblems2 changes expand_more

Object	Change	Before	After	Impact
Arbiter Emblem	Attack speed	20%	30%	Buff
Rogue Emblem	Omnivamp	40%	25%	Nerf

Choncc's K.O. Coliseum2 changes expand_more

Object	Change	Before	After	Impact
Star Guardian	Prismatic breakpoint	10	11	Nerf
Soul Fighter	Prismatic breakpoint	10	11	Nerf