Everyone is making good points. But I don't play Skarner as a jungler. I play him as a top laner. And he is one scary dude. lvl 1, I can win most fights. Level 2 is the same. Depending on if I won the first fight or not is which spell I grab next, since a slow will get me the kill in most situations. Or a 80 Less dmg taken will let me win the next trade.
Is a ranged opponent harder to deal with? Yes. But I kill them all the same. (Ryze, even 0/3/0 can still kill me when he spikes at 6... Well, before he got his passive nerfs. Sheesh. Roots for ever. )
The stun is very useful in lane it makes trading great, when you get a spell and auto ahead, and re-position slowly to cut them off from running. Move speed works like having Phage, with never needing to buy it.
I grab
every game, and depending on the match up, is what I go for first. I do mixed damage nearly straight down the middle, only off set by which I grab first. People have a hard time itemizing against Skarner in lane.
It was said that Iceborn wasn't as useful since slows don't stack? Well okay. Why is a 30% slow useless? Okay, great, a 60% slow is on him for 1.5 seconds or so. Well, for the rest of the time before and after he will always be slowed by 30%.
If this was meant to say it's not great since his E and it wont stack, I don't know why anyone would want to use his E, with out good need. In lane I wait for them to flash/dash before I use it. Since it will let be get back on them.
Useing those as "Offensive" items, it's pretty easy to deal great damage, and not take much of any. IN top lane, he is a great pick. Not to just counter some picks or something. But because his cc makes for easy ganks. Super easy. Stun, long ranged slow "(If you dont miss), Great speed for chasing, his ult for dragging them back.
Even if losing lane, I have actually gotten three kills, because how how dangerous my ult is. Even farming next to my tower, will get you killed as I drag you under.
I agree that besides his ult, he feels generic. But I feel like his passive is good though. And how it Synergies with his ult for bonus damage if I choose not to use the stun. But won't set it on cooldown.
Now what I don't like. Is his lack of any scaling. Like at all. It all feels terrible... His damage and his heal is gone off of his E. Which made for a great lane sustain.
Anyways, I don't think I mind number changes, and maybe they will come up with something awesome. But Skarner is in a decent spot. I like him, he is fun, he is powerful. And it's rewarding to use his ult in conjunction with a team. The number of times I have dragged someone though Zigg's minefield is just awesome.
If you're bored playing him... Go top lane. Smashing Q on mosnters is dumb, but poking with your q, and seeing the horror as they learn what 3 stacks mean is pretty rewarding.