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What changed for Karthus?
Search every recorded change across recent official patches: classes, champions, agents, heroes, weapons, items, maps and systems.
4 changes across 2 patches (May 27, 2026 to Jun 9, 2026), newest first.
Nerf 4
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NerfArena Q (reverted to match SR) Base DamageKarthus' Q base damage is reverted to match Summoner's Rift, decreasing from 60–140 to 40–116.60–140→40–116
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Q (reverted to match SR) Base Damage: 60-140 → 40-116
NerfArena Q Ability Power RatioKarthus' Q ability power ratio decreases from 45% to 35%.45%→35%Source line
Q Ability Power Ratio: 45% → 35%
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NerfArena R cooldownKarthus' R cooldown increases from 60 to 120 / 100 / 80.60→120 / 100 / 80
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R cooldown: 60 → 120 / 100 / 80
NerfArena AP RatioKarthus' AP ratio decreases from 100% to 90%.100%→90%Source line
AP Ratio: 100% → 90%
Other matches
1 more change in 1 patch, newest first.
New
League Classic Nami
Nami joins League Classic.
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NEW Nami
- Nami is back in action and not much has changed since her release in 2013. For those of you coming right from the modern game, her E buff is attack-only, so the modern Nami-Karthus synergy is gone.
- Passive - Surging Tides
- Allies struck by Nami's abilities briefly gain bonus move speed.
- Q - Aqua Prison
- Nami lobs a bubble that damages and stuns enemies where it lands.
- W - Ebb and Flow
- Nami unleashes a stream of water that bounces, alternating between enemies and allies. Enemies take damage while allies are healed. Each bounce is less effective than the hit before it.
- E - Tidecaller's Blessing
- Nami empowers an ally, causing their next three attacks to deal bonus damage and slow their target.
- R - Tidal Wave
- Nami unleashes a massive tidal wave that damages, knocks up, and slows all enemies it crashes into.