Karthus W Change Proposal

alright, so I figured that since Rylai's is losing some of it's slowing power, (along with some of it's stats of course) and given the popularity of my last post about Karthus's W, I wanted to try my hand at attempting to change around some of the numbers for Karthus's W that could better his kit overall and give him some prevalence in the current meta.

Current Stats for Wall of Pain:

Range: 1000 Mana: 100 CD: 18 Wall Length: 800 / 900 / 1000 / 1100 / 1200 Slow: 40 / 50 / 60 / 70 / 80% (reduced to half after 1 second) MR Shred: 15%

The Problem: While Karthus can use this as a pretty decent Initiation/Disengage tool, it's effectiveness cuts off after just 1 second, which is rather dismal if you're trying to chase down an enemy to hit Q's on 'em. Not only that, but Most assassins have tools to negate the slow entirely with dashes and such which renders it ineffective as a disengage tool.

Possible Suggested Changes:

• Gives the Grounded Debuff on Pass Through for half the duration of the Wall

• Wall lasts longer as you level it

• Wall Stops enemy dashes (enemy dash would stop just after passing through the wall)

• Remove the slow decay

Now these shouldn't ALL be implemented (because as a Karthus main, even I Think that's too OP XP ), but I'd like to see something like these to be put in. Granted, I'm sure Riot wouldn't want to do these without adjusting the mana cost of the W, but I'd be fine with that honestly. Something around the lines of a scaling mana cost of 120/150/170/200/230 would suffice maybe (Yes, it would cost more than his Ult, but considering that's on a long ass CD anyway, and the W is used a lot more, I think it's Justified)

Feedback is always appreciated, and I'm curious as to what the Reds think. Would any of these changes be a good idea for Karthus?