Originally Posted by Lazy8s
Yeah that sounds too gimmicky for me. I have been running flash/ignite but may try flash/revive. I have only been doing ~150-190 CS but the games are ending in less than 30min. Clearly I can work on that. Thanks!
No. Do not use Revive on Karthus. Only people who really know what they're doing run Revive on Karthus, and they're screwing around.
You don't need to zone the enemy laner as Karthus. It doesn't matter if they're getting CS since you will always outscale them if you manage to be in range of the enemy team with your passive for at least a few seconds and then ult the **** out of everything. Obviously if they're asking for it you can pummel them and possibly kill them, but that's up to you.
Also, since a majority of the time you'll ult after you die, you will not benefit from CDR AT ALL because Karthus has no CDR when he's dead/passivedead. You'll get limited benefit from mana since your spells cost nothing when you're psuedodead.
Really the only thing that you need to work on is getting every minion kill that rolls past their tower. Ulting for kills/assists in side lanes is also good.