As an up and coming Mordekaiser main I feel that his only skin is the King of Clubs one. Now, I believe that the Riot team has really good ideas on skins and I believe they can make a sick ass skin for the tiny community of Mordekaiser mains.
Doubt we'll see anything really good for him anytime soon, since he's on tier 1 for VGUs list. So, he needs a major update before we really see a great skin for him.
They probably won't add a skin when they update him since he has 4 too update.
I think Dragon Knight Mordekaiser is his best skin. It's a retired skin, so it's semi-exclusive, and the colors look nice in-game. The splash art is kind of plain though. I agree that King of Clubs is nice as well. Pentakill Mordekaiser is decently cool too.
The rest of his skins... meh... especially Lord Mordekaiser which seems to be an attempt at creating a premium skin but falls short and looks very outdated.
When Mordekaiser gets a visual upgrade, his existing skins will be improved and will receive new splash arts. I don't think he will get a new skin beforehand, but anything is possible.
We probably won't see a new skin until a little while after his eventual VU (whenever that might be).
That being said, I'm actually surprised Morde actually needs a VU. . . His model is fine as is - it's just that ever since his gameplay rework, his abilities look bland and uninspired. That's about it.
*Side Note: Eternum Mordekaiser or would be pretty great.
