Nautilus need your help I'm here to contribute! Please hear me out.

For a shield that last 10 seconds with 18 seconds cooldown and 15% strength it's weak. why? 3 proc of and poof! gone... and it's not a joke it's true! but why? because it scale bonus health my math will explain everything. here's an example : nautilus Level 18 with 0 armor 4k health 2k of his bonus transferred into 15% shield = 300+300 base=600. now here's VS (imagine that icone was naut shield,believe) , 5% of your maximum health in damage, 200 damage per hit now let's try with 3 hits , poof 15% 600 damage. 3 hits of botrk alone and your shield is poof! gone.the more hp you have the worst it your shield becomes remember it scale bonus health not health which give %hp damage a superior advantage!

Nautilus walk into a bar there is no... ... oh crap let's get outta there with my tail between my legs!!!

I had a shield now I don't and I'll be wandering 18 seconds with a spell on cooldown... In theory the shield should last 5 second with 12 second cooldown this way if they break your shield with 3 hits you wont be wandering around for a whole 18 seconds with an ability down not to forgot to mention the shield strength scale with bonus health (you saw how weak it is right? but did you see it in a real game? no! because play him anymore everyone know how weak nautilus can be). sitting there hitting the wall shield breaking easily with an bugged E although I like the ultimate and probably coolest thing he has right now. as for his Q hitting wall lowering cooldown to move faster through the jungle or catch someone "which is" kind of hard when you realize how large is Q hitting the tank most of the time and lastly to escape like a coward. would you believe me if I said reducing width of his Q and hitting a champion lowering cooldown to hit him again would be a much more optimal mechanic?

For the damage on hit it only scale with AP now if it were to do lets say 4-5% of your bonus health in damage you'd be doing a maximum of 12-15% health damage per second on auto attack yeah bonus health not so good compared to champion scaling maximum health, its a big difference to have 4k maximum health in damage and shield and 4k in bonus health in shield and damage 2k added to your maximum health thats 2 time more strenght especially when you can dealt damage with it.

here's an example: mr.X they both have 4k health.

1.Nautilus shield scale 15% bonus HP what do you get? it's exact! 300 bonus shield.

2.now here's nautilus with 10% bonus HP what do you get? it's exact! he now has 200 bonus shield.

3.now here's mr.X with 15% maximum health what do you get? it's exact! he now has 600 bonus shield.

4.now here's mr.X with 10% maximum health what do you get? it's exact! he now has 400 bonus shield.

in this scenario Mr. X would need to have his base shield nerfed to balance his strength and he would.

Level 1

Nautilus has 518HP and started with 0 bonus health his shield scale 15% bonus health what do you get? it's exact! he now has 100 shield and 0 bonus shield

Nautilus shield now scale 10% bonus health what do you get? it's exact! he now has 100 shield and 0 bonus shield

Mr.X has 518HP and started with 0 bonus health his shield scale 15% bonus health what do you get? it's exact! he now has 100 shield and 77.7 bonus shield what a lucky guy!

Mr.X shield now scale 10% bonus health what do you get? it's exact! he now has 100 shield and 51.8 bonus shield

in this scenario Mr. X would need to have his base shield nerfed to balance his strength and he would.

it's true that nautilus has a lot more of base shield and I fully understand why it's scaling bonus shield instead but to be short I think his W should scale bonus health and the cooldown is off the chart. don't even get me started with AP nautilus I can't count how many I got hated and reported doing something stupid like that.

right now if nautilus shield break he won't be doing damage and i shown you how weak and easy it is to break it, he deal 1/2 the damage on hit and full damage over 2 second stacking attack speed works but it's a stupid thing to do also your shield will instantly break if you do that and it's not optimal or an option. it's pretty good for jungling but that's pretty much it.

my idea would be to reduce the cooldown of W and by doing so reduce the duration your shield last by half and reduce naut mana cost to subtentially increase his mana cost as you level up the spell a scaling per level to balance early and late game. as for the damage I made it scale bonus HP because of that I slightly reduce the base damage and make it dealt damage wither or not your shield break so instead of doing no damage because your shield broke you'll be doing damage but you won't be able to do damage for 10 second constantly since you'll only be able to cast it 5 time max. anyways here's a picture it's more detailed.

tl;dr? tl;dr! where's my tl;dr!?!? do not worry summoner i made a picture specifically for you , better than 3D.