When Karthus dies in the team fight first then kills half the enemy team

But how does one kill 2 1/2 people?!

[zombie-brand-mindblown]

https://media.giphy.com/media/wfKxUQIACcDVm/giphy.gif

http://imgur.com/6iqZLHU

This is even more humorous when Karthus deliberately died due to a lack of mana.

i seen a karthus penta kill after die before

but sadly theres gonna be person on your team who is gonna say "karthus you noob, stop dying!" so here take this upvote!!!!!!!!!!

https://www.youtube.com/watch?v=msa5ua7kZmQ