Skip to content
PatchDelta

LEAGUE OF LEGENDS / CHAMPION

AssassinMidJunglethe Shadow Reapernet nerf (minor)Resource: Mana
FighterAssassin

Kayn

Minor net nerf (score -1, 2 buffs / 3 nerfs). Notable: W mana cost 60→40; Q mana cost 50→40; W base damage 85→75. Touched across patches 25-10, 25-17, 25-24.

Patches touched
3
Cumulative score
-1.0
Released
2017-07-12

Abilities

Passive

The Darkin Scythe

Kayn wields an ancient weapon and fights Rhaast, the darkin within it, for control. Either the Darkin will triumph, or Kayn will master Rhaast and become the Shadow Assassin. Darkin: Heal for a percentage of spell damage dealt to champions. Shadow Assassin: For the first few seconds in combat with enemy champions, deal bonus damage.

Patch trajectory
Bonus Post-Mitigation Magic Damage25.020.0nerf
Q

Reaping Slash

Kayn dashes, then slashes. Both deal damage.

Cooldown
7s6.565.55
Mana
4040404040
Range
350
Patch trajectory
Mana Cost50.040.0nerf
W

Blade's Reach

Kayn damages and slows targets in a line.

Cooldown
13s1211109
Mana
4045505560
Range
700
Patch trajectory
Mana Cost60.040.0nerf
Base Damage85.075.0nerf
E

Shadow Step

Kayn can walk through terrain.

Cooldown
21s19171513
Mana
9090909090
Range
400
R (Ultimate)

Umbral Trespass

Kayn hides in an enemy's body, dealing massive damage when he bursts out.

Cooldown
120s10080
Mana
100100100
Range
550

Base stats

Patch trajectory
Health Growth109103nerf
StatBase (Lv 1)Per level
Health655+103
Mana410+50
Attack damage68
Attack speed0.669/s+2.700/s
Armor38+4.5
Magic resist32+2.1
Move speed340
Attack range175

Lore

A peerless practitioner of lethal shadow magic, Shieda Kayn battles to achieve his true destiny—to one day lead the Order of Shadow into a new era of Ionian supremacy. He wields the sentient darkin weapon Rhaast, undeterred by its creeping corruption of...

A peerless practitioner of lethal shadow magic, Shieda Kayn battles to achieve his true destiny—to one day lead the Order of Shadow into a new era of Ionian supremacy. He wields the sentient darkin weapon Rhaast, undeterred by its creeping corruption of his body and mind. There are only two possible outcomes: either Kayn bends the weapon to his will... or the malevolent blade consumes him completely, paving the way for the destruction of all Runeterra.

Tips

Playing as Kayn

  • Look at the line-up of both your team and the enemy's team when picking your form.
  • Remember that nearby enemies can see which wall you're in.

Playing against Kayn

  • Umbral Trespass requires Kayn to damage a target first. Try to dodge Blade's Reach to deny him a long range cast of Umbral Trespass.
  • When Kayn is in terrain near you, you will get a visual warning on the edge of the terrain he's in.
  • Damage Kayn while he's in Shadow Step to shorten its duration, or apply hard crowd control (stun, charm, knockup, etc) to end Shadow Step immediately.

Patch impact

Net verdict-1.03 patches touched
Patch presence3 of 27 patches
S2625-4 (2025-02-19) — untouched25-5 (2025-03-04) — untouched25-6 (2025-03-18) — untouched25-7 (2025-04-01) — untouched25-8 (2025-04-15) — untouched25-9 (2025-04-29) — untouched25.1025-10 (2025-05-13) — nerf25-11 (2025-05-27) — untouched25-12 (2025-06-10) — untouched25-13 (2025-06-24) — untouched25-14 (2025-07-15) — untouched25-15 (2025-07-29) — untouched25-16 (2025-08-12) — untouched25.1725-17 (2025-08-26) — buff25-18 (2025-09-09) — untouched25-19 (2025-09-23) — untouched25-20 (2025-10-07) — untouched25-21 (2025-10-21) — untouched25-22 (2025-11-04) — untouched25-23 (2025-11-18) — untouched25.2425-24 (2025-12-02) — nerf26-4 (2026-02-19) — untouched26-5 (2026-03-03) — untouched26-6 (2026-03-17) — untouched26-7 (2026-03-31) — untouched26-8 (2026-04-14) — untouched26-9 (2026-04-28) — untouched
buffnerfmixed

Changelog

Patch 25-242025-12-02
  • PASSIVEBonus Post Mitigation Magic Damage2520nerf
  • WBase Damage8575nerf
Patch 25-172025-08-26
  • QMana Cost5040buff
  • WMana Cost6040buff
Patch 25-102025-05-13
  • BASEHealth Growth109103nerf

Live performance

Live performanceComing soon

Win rate, pick rate, and ban rate from third-party tracker data will overlay here once the fetcher pipeline ships. Patch trajectory tells you what was changed; the live overlay will tell you whether the change worked.

Champion data sourced from Riot Data Dragon (opens in new tab) (16.10.1).