Proposed Nautilus changes that would help him do what he's supposed to do
So I've seen Nautilus has some changes on the PBE in hope of making him a viable pick. Now, I don't play Nautilus a lot by any means but I have played him a few times support this season just for funzies. Perhaps I don't have enough experience, but from what I've seen, Nautilus currently does what he's supposed to do.
His hooks, cooldowns, tankiness - all of those feel OK, and actually, as a Pyke player (or virtually any hooking support), I was actually surprised how good his Q is. I mean, yeah, it has that cancerous hitbox, but it's not gimped in any way, and as a support or a jungler, it's very much an enjoyable bread and butter ability.
I've seen that Riot is trying to bring him back by buffing his passive. But when you think about it, what does it accomplish? In a fast trade, it's not going to matter. It's going to trigger twice in a gank top. But the thing is, Nautilus top is gated by mana costs and low damage. This in turn means that jungle Nautilus just sucks because he can neither clear multicreep camps, nor can he clear single creep camps.
So here is my proposed change, because I feel jungle is where Nautilus should belong in order to be the most enjoyable for the player playing him and the enemy team:
Make his E echo of a wall once. Basically what I mean by this is that you should make it so when Nautilus' E hits terrain, it echoes once. Practically this would mean that in a narrow passage with a large enough unit, he could hit it 4 times instead of the maximum 3 (3 original + 1 off the wall or 2 original + 1 from a wall from each side). This would make it possible to apply another damage instance to creeps, which could likely never be abused in lane, the same way Graves' Q burst can't really be abused in lane the way it can be used in the jungle. Additionally, his base AD could use some buffs - he has fairly low AS, and if you look at other bruisers and tanks, they generally have better AD and AS. Currently, Nautilus has 61 base AD with 0.612 AS. While his AS doesn't need buffs, you could increasehis AD to something like 65 AD. I know that he has somewhat lower AD because of his passive, but lets face it - how does he actually abuse it? If he's triggering his passive on other champions he's already in melee range, and he's not someone who will just solo kill a target. In the jungle, the 8 damage on a 6 second cooldown level one is simply not worth for a measly 61 AD. But when you look at what the AD change would do in his problematic positions (top sleeper tank), it wouldn't really give him that much trading power, nor would AD give him significantly more waveclear.
Overall, I believe Nautilus is actually fine as a niche pick and that he delivers all of the stunning and tanking pretty well. What he lacks is power to back it up. While Leona does most of the things he does better than him as well as provide greater damage, Leona was always pushed into the support role and away from jungle, so as a result she doesn't have clear. Nautilus, however, he became a support for a short time because of how good of a CC tank he was, and because his numbers were a bit high. So why not push him back into the role he was intended to be in without buffing the things that made him deviate from what he was intended to be? If anything, it would perhaps be the first fix attempt of the feast or famine meta we have since he is a defensive champion in a good spot that just needs a small push to be viable.