In my opinion, Mal is better in general saying that hes not fed or is feeding. But a fed Karthus is more scary than a fed Mal.
karthus' q is sustained burst damage lol
and his r is burst damage
hes a mage/nuker/carry
not the only one too
i like malzahar more, mainly cuz he has more guarenteed damage from a safer distance
they both are very similar though, as they both require a lot of mana, have an ability to regenerate mana, do a lot of damage via spells naturally, have good ap ratios, and are pretty solid mages =3
© 2013 Riot Games, Inc. All rights reserved. Riot Games, League of Legends and PvP.net are trademarks, services marks, or registered trademarks of Riot Games, Inc.