How to Reduce Karthus Ult Cooldown by 52 Seconds!

Song title: [ Gwen, the Hallowed Seamstress]
Artists: [ Riot Games ]

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Welcome to the Hextech Lab!

If you’re interested in learning about strategies, tactics, or glitches in League of Legends, you’re in the right place!
Here I document bugs in the game. Some of them are useful, some aren’t. Either way, you can learn about them here! I also test out new champions and experiment with interactions between characters and their abilities.

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[ccs]

me miss clicking and running out of base with black cleaver goredrinker karthus

[faloughasch]

Aaah, so it's similar to old shen ult bug.
he usedto be able to sell his stuff, buy AP/shield increasing items before ulting, and then undoing everything rapidly so that the shield the teammate gets was absolutely massive

[wywlf]

careful doing this tho, you might get stuck with those items once the ult goes off before undoing everything

[Maximillionum]

If this happens even ONCE in pro-play they'll rework Karth and make it impossible to do this anymore xD

[ratdn]

reminds me of the shen r as well, buy full ap, shen r someone and undo really quick

[ocoro]

that's actually pretty sick. game breaking even

[oldrecoilconnoisseur]

I did this in an aram, very very helpful, 55 sec ult cd

[BucketsnGves]

And to think it's been an entire decade since SsethTzeentach first brought Spawn Karthus to the masses, and after all that time there are still innovations to be made

[thechh]

Instructions unclear.

Damage was calculated with 0 items and now I'm locked out of my full build with only enough gold for 3 items and boots.

[jalilsadeq]

That could work with any global ult champion if you are fast enough

[tarehjernetarehjerne]

You can do the same thing with shen. Build full AP, R someone for 2k shields and undo

[RandomMusik]

xPeru sometimes buys ad and makes the undo for bigger Shen ult shield

[santiagosancho]

See, my problem with this is that the full CDR build is legit on some AD assassins and even bruisers, except for that AP item

[Dontbeabadguy]

I was doing it for months, now thx to this video, they will patch it

[IloveFrytkasy]

finally I can play spawn karthus in peace

[apunnojustice]

Oh i usually just throw an axiom arc on there and then boom, stonks

[pureradiants]

FUCK I love this music. Makes me more hype for silksong

[Strelarck]

Damn, this bug is actually pretty useful, you only need 12k gold in your pockets to do

[DragomarGaming]

Lategame karthus be sitting in base like:

[kniazjarema]

Such a simple trick, i wonder how many game breaking bugs are there in the game that people won't disclosure because it's just free lp. I've seen riven teleporting with E, global spells with xerath and tahm(i think), items calculating damage incorrectly, i want to see more til riot go bankrupt.