Battlecast Karthus

Now I know the idea may seem a bit funk since he's an undead-ghost-necromancer. But I thought It would still be cool

Q-The same but more like fire instead of ethereal.

W-Two Tesla poles assemble at the target and activate for an electric wall

E-Set's the ground on fire around him instead.

R-Orbital lasers. An interface like Vel's joke, or taunt i think, appears in front of Karthus, presses some holographic buttons then you see laseindicaters like Lux's ult target the enemy champs and then BOOM! vaporized!