How To Abuse Karthus R

How to Abuse Karthus R (Less CD)

How to Counter Karthus R

Daily League Clips

The trick that CHANGES how you use Karthus ult

Pro Players' Clips

Tyler1 gets oneshot by Karthus ult

Enchanter Lover

Pro as heck Guide to Spawn Karthus by Dyrus | MLG | 420 | Ron Paul 2012

When 774 AP Karthus Press R..

When 561 AP Karthus Press R..

Doublelift, Meteos and Sneaky react to Karthus ult

When 851 AP Karthus Press R...

When 6 Items Karthus Press R..

Blocking Karthus R with Braum's E by targeting towards him

How to ABUSE Karthus Jungle like a Korean challenger

Just type "karthus ult" - Riot Phreak

KARTHUS BUT I CAN ULT EVERY 20 SECONDS BECAUSE IT'S GLITCHED (THIS IS HILARIOUS)

One for all Karthus ults

KARTHUS TRICK MAKES ULT HALF THE CD???

Pro Players' Clips

When Karthus E suddenly becomes Rell R

Pro Players' Clips

Karthus Pentakill - Single Ult Pentakill

Most Satisfying Karthus Ultimate of All Time

Pro Players' Clips

Karthus R + Elder Buff = Full HP One Shot