In the lcs, I saw a decent amount of vi. As a j4 player, I was curious why I never saw him, when they are very similar champs. What does Vi bring to the table that J4 doesn't? They both have aoe knock-ups, shields, Attack speed steroid, armor shred, etc. Also, now, towards the end of the spring split, and the beginning of the summer one, Vi has fallen out of favor. Was it just FF or the weird double jungle/lane swap? I'm no LOL expert and was hoping someone could inform me.
Hyrum Graff2 votesIn part, it's because J4's E-Q hitbox got nerfed, so it's rather hard to hit. Vi's gapcloser is much more reliable.
Also, with the mobility creep (most of the common picks have dashes), J4's ult becomes less important than VI's, which you can't just dash out of.
Finally, Vi's better at tower diving, so yes, the lane swaps certainly contributed.
Polaritie1 votesVi is also burstier, which helps her get kills.
GottJaeger1 votesThat makes Sense. Its annoying when you blow ult and 
just tumbles out. I feel they could lower its damage or increase its cool-down, but add a taunt on the original target. Or, some kind of punishment for leaving his ult.
Hyrum Graff1 votesAdditional damage if you dash out of it? (through the sharp spikes created by the cataclysm)
I'd also like to see that added to 
's wall.
GottJaeger1 votesYes, maybe a slow/stun on wall because its ice?
Hyrum Graff1 votesAnivia already has a stun/slow and an aoe slow, and moreover, her wall is interesting. If you add a stun/slow to it, then you have to take power out of it somehow, too, probably by making it smaller and/or not last as long. IMO, that takes away a lot of what's cool about Anivia. Adding a "damage if they go over the wall" basically just restores Anivia's power level to where it used to be (people can't go over her wall) without buffing her above where she could be.